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Finding the Third Proportional to 57,042.50 and 75,702

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Solution

The third proportional to 57,042.50 and 75,702 is: 100,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,042.50 : 75,702 = 75,702 : x
  2. Step 2: Convert to fraction form
    57,042.50/75,702 = 75,702/x
  3. Step 3: Cross multiply
    57,042.50x = 75,702 × 75,702
  4. Step 4: Simplify right side
    57,042.50x = 5,730,792,804
  5. Step 5: Solve for x
    x = 5,730,792,804/57,042.50
  6. Step 6: Final answer
    x = 100,465.32

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.