To solve this question, we will follow the steps below:
First, we will find the ratio
[tex]\text{ratio = }\frac{12}{5\times5}=\text{ }\frac{12}{25}[/tex]Next is to find the area(A)
a mile = 5280 ft from the question
A = 25 x 5280 x 2 x 3
A = 792 000 sq feet
Size of crowd =
[tex]\text{ size of crowd = 792000 }\times\frac{12}{25}\text{ = 380 160 people}[/tex]