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Finding the Third Proportional to 57,453.50 and 80,360

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Solution

The third proportional to 57,453.50 and 80,360 is: 112,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,453.50 : 80,360 = 80,360 : x
  2. Step 2: Convert to fraction form
    57,453.50/80,360 = 80,360/x
  3. Step 3: Cross multiply
    57,453.50x = 80,360 × 80,360
  4. Step 4: Simplify right side
    57,453.50x = 6,457,729,600
  5. Step 5: Solve for x
    x = 6,457,729,600/57,453.50
  6. Step 6: Final answer
    x = 112,399.24

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.