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Finding the Third Proportional to 60,744 and 81,732

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Solution

The third proportional to 60,744 and 81,732 is: 109,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,744 : 81,732 = 81,732 : x
  2. Step 2: Convert to fraction form
    60,744/81,732 = 81,732/x
  3. Step 3: Cross multiply
    60,744x = 81,732 × 81,732
  4. Step 4: Simplify right side
    60,744x = 6,680,119,824
  5. Step 5: Solve for x
    x = 6,680,119,824/60,744
  6. Step 6: Final answer
    x = 109,971.68

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.