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Proportionality and percentages

A ratio is a comparison of two numbers. We generally separate the two numbers in the ratio with a colon (:) or write it as a fraction. A proportion is one equality with a ratio on both sides. A perc ...

Proportions Using Cross Product? At grade

Identify proportions by cross multiplying or simplifying ratios.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Proportional distributions: direct and inverse

You'll learn the concepts of proportional quantities and the fundamental rules of proportionality that allow us to solve problems whose statements pose some difficulty.

Proportional distributions: ...

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