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Finding the Third Proportional to 57,727 and 86,758

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Solution

The third proportional to 57,727 and 86,758 is: 130,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,727 : 86,758 = 86,758 : x
  2. Step 2: Convert to fraction form
    57,727/86,758 = 86,758/x
  3. Step 3: Cross multiply
    57,727x = 86,758 × 86,758
  4. Step 4: Simplify right side
    57,727x = 7,526,950,564
  5. Step 5: Solve for x
    x = 7,526,950,564/57,727
  6. Step 6: Final answer
    x = 130,388.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.