Finding the total amount given the percentage of a partial amount

Question

In a recent year, 29.7% of all registered doctors were female. If there were 45,300 female registered doctors that year, what was the total number of registered doctors?

Round your answer to the nearest whole number.

Answer 1

Lets say total # of doctors is x

since we have percent, we just follow percent rule

x* 29.7% = 45300

x*0.297 = 45300 (convert percent to decimal and you get 0.297)

when you solve this equation, you need to divide both sided by 0.297