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Finding the Third Proportional to 71,736 and 98,472

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Solution

The third proportional to 71,736 and 98,472 is: 135,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,736 : 98,472 = 98,472 : x
  2. Step 2: Convert to fraction form
    71,736/98,472 = 98,472/x
  3. Step 3: Cross multiply
    71,736x = 98,472 × 98,472
  4. Step 4: Simplify right side
    71,736x = 9,696,734,784
  5. Step 5: Solve for x
    x = 9,696,734,784/71,736
  6. Step 6: Final answer
    x = 135,172.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.