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a/b = c/d if and only if a*d = b*c.

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Q: How can you tell if two ratios form a proportion?
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What does it mean when two ratios form a proportion?

When two ratios form a proportion, the ratios are equal


How can you check to see if two ratios form a proportion?

Any two ratios, provided the second is not 0, form a proportion.


When two ratios are equal they form a?

Proportion


Can two ratios form a proportion?

yes they can


What are two i ways you can tell two ratios form a proportion?

The simplified forms of the two ratios are the same.The cross products are the same: a/b = c/d if ad = bc


What are two ways you can tell two ratios form a proportion?

The simplified forms of the two ratios are the same.The cross products are the same: a/b = c/d if ad = bc


How can you tell when two ratios form a proportion?

The simplest way is to check if their cross-products are the same. That is, if you have A/B and X/Y then if AY = BX the two ratios are equivalent.


Is 3 over 4 a form proportion why?

A proportion is a statement that two ratios are equal.3/4 is one ratio, so it does not form a proportion.


When do two ratios form a proportion?

When both can multiply its comparisons to when both ratios share the exact same numbers.


What are two ways you can tell a ratio form a proportion?

The simplified forms of the two ratios are the same.The cross products are the same: a/b = c/d if ad = bc


An equation that states that two ratios are equal?

An equation that states that two ratios are equal is a proportion.


Two ratios that are equivalent are said to be in what?

Two ratios that are equivalent are said to be in proportion