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Finding the Third Proportional to 52,912 and 71,860

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Solution

The third proportional to 52,912 and 71,860 is: 97,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,912 : 71,860 = 71,860 : x
  2. Step 2: Convert to fraction form
    52,912/71,860 = 71,860/x
  3. Step 3: Cross multiply
    52,912x = 71,860 × 71,860
  4. Step 4: Simplify right side
    52,912x = 5,163,859,600
  5. Step 5: Solve for x
    x = 5,163,859,600/52,912
  6. Step 6: Final answer
    x = 97,593.36

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.