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Finding the Third Proportional to 71,632 and 82,816

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Solution

The third proportional to 71,632 and 82,816 is: 95,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,632 : 82,816 = 82,816 : x
  2. Step 2: Convert to fraction form
    71,632/82,816 = 82,816/x
  3. Step 3: Cross multiply
    71,632x = 82,816 × 82,816
  4. Step 4: Simplify right side
    71,632x = 6,858,489,856
  5. Step 5: Solve for x
    x = 6,858,489,856/71,632
  6. Step 6: Final answer
    x = 95,746.17

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.