Step 1: Let's calculate the area of the section:
Area of the section = 5,280 * 3
Area of the section = 15,840 ft²
Step 2: Now, let's calculate the number of 25ft² areas, this way:
Number of 25ft² areas = 15,840/25 * 2= 1,267.2
Step 3: Finally, we can calculate the size of the crowd:
Size of the crowd = Number of 25ft² areas * 9
Size of the crowd = 1,267.2 * 9
Size of the crowd = 11,405
We can estimate that a crowd of 11,405 people will stand along the parade route on both sides of the street