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Finding the Third Proportional to 71,432 and 107,796

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Solution

The third proportional to 71,432 and 107,796 is: 162,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,432 : 107,796 = 107,796 : x
  2. Step 2: Convert to fraction form
    71,432/107,796 = 107,796/x
  3. Step 3: Cross multiply
    71,432x = 107,796 × 107,796
  4. Step 4: Simplify right side
    71,432x = 11,619,977,616
  5. Step 5: Solve for x
    x = 11,619,977,616/71,432
  6. Step 6: Final answer
    x = 162,671.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.