Proportions Review

Cross Multiply

The best way to identify if the ratio is proportional is to use cross multiplication .

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​What if there is a missing part of ratio in the proportion?

Find the missing fraction variable in the proportion using our loop and circle method to calculate the unknown variable X. Solve the proportion between 2 fractions and calculate the missing fraction variable using division.

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​Missing Ratio

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​ ​When missing a ratio number, our goal is to find missing number using the same method of cross multiplication to find if the ratio is proportional or not.