To create a proportion using the form %/100 = is/of for the problem "What is 60% of 20?", we first identify the components:
- The percent is 60.
- The total (the "of" part) is 20.
- The "is" part represents the unknown value we want to find.
Using the format, we can set it up as follows:
\[ \frac{60}{100} = \frac{x}{20} \]
where \( x \) represents the value we are trying to find, which is 60% of 20.
So, the completed proportion is:
\[ \frac{60}{100} = \frac{x}{20} \]