Real World Ratio Problem Using Scale

The video tutorial explains how to solve a real-world ratio problem using a map scale. It begins by introducing the problem of finding the actual distance between two towns using a map scale where 1 inch represents 18 miles. The tutorial then sets up a proportion to solve for the unknown distance, using the cross product property to calculate the result. The final calculation shows that the actual distance is 81 miles.

What does the scale on the map indicate in terms of inches and miles?

• 1 inch represents 15 miles

• 1 inch represents 10 miles

• 1 inch represents 20 miles

• 1 inch represents 18 miles

If the map shows a distance of 4.5 inches, what is the first step to find the actual distance?

• Divide 4.5 by 18

• Add 4.5 to 18

• Set up a proportion with the given scale

• Multiply 4.5 by 10

What is the result of multiplying 18 by 4.5 in the context of this problem?

• 72

• 81

• 90

• 85

How many decimal places are needed in the final answer for the actual distance?

• Three

• Two

• One

• None

What is the actual distance between Olivia's town and her grandmother's town?

• 85 miles

• 72 miles

• 90 miles

• 81 miles