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Proportions
A proportion is a statement that two ratios are equal.
It is an equation with a ratio on each side.
When one of the four numbers in a proportion is
unknown, This is called solving the proportion.
Example:  4/8 = 2/4
Example: Solve for y: 1/2 = y/8.
Comparing Ratios- How to tell if to
ratios are equal by
Using Proportion