Final answer:
To find the missing percentage, set up a proportion and solve for 'x'. The equation is (x/100) * 60 = 18, which simplifies to x = 30. Therefore, 30% of 60 is 18.
Step-by-step explanation:
The question asks to fill in the missing number, which represents the percentage of 60 that equals 18. To solve this, we can set up a proportion where the unknown percentage is represented by 'x', and then we solve for 'x':
- x% of 60 = 18
- (x/100) * 60 = 18
- x * 60 = 18 * 100
- x * 60 = 1800
- x = 1800 / 60
- x = 30
Therefore, the missing number is 30, which means that 30% of 60 is 18.