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An equation stating that two ratios are equal is called a proportion.
Method 1:
Ratio of the first fraction
Ratio of the second fraction
Check the ratios of fractions.
The ratios are equal. So, the ratios form a proportion.
Method 2:
Write the equation
According to Means-extremes Property of proportion: If, then .
(Cross products)
(Multiply:)
The cross products are equal. So, the ratios form a proportion.
Yes.
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