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A simple tool to remember is: IS over OF equals percent over 100.
If we put this into a proportion, we get:
IS/OF = percent/100.
Just put all percent problems into this format, and solve the proportion.
Example: 12.5 IS what percent OF 75?
Or,
12.5 IS | what percent | OF 75?
Just put these numbers into the proportion: (We will use x for the percent, as that is the unknown we are solving for)
12.5/75 = x/100.
Then solve by cross multiplying:
75x = 1250.
Then divide by 75:
x = 1250/75,
x = 16 2/3 %
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What proportion for 62 to help you find a percent?
100/62 is the appropriate proportion.
What is a situation in which you would have to use a proportion?
To find a percent.
Write a proportion that can be used to find the part if you know the base and the percent. Then solve the proportion.?
Part = Base*Percent/100Proportion = Part/Base = (Base*Percent/100)*Base = Percent/100.
How do you find 10 percent of 400 without writing a proportion?
Multiply 0.1 by 400 to get 40. This is how you find 10% of 400 without using proportion.
How do you find a ratio as a percent?
you set up a proportion and cross multiply then divide
