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Finding the Third Proportional to 32,387 and 70,472

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Solution

The third proportional to 32,387 and 70,472 is: 153,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,387 : 70,472 = 70,472 : x
  2. Step 2: Convert to fraction form
    32,387/70,472 = 70,472/x
  3. Step 3: Cross multiply
    32,387x = 70,472 × 70,472
  4. Step 4: Simplify right side
    32,387x = 4,966,302,784
  5. Step 5: Solve for x
    x = 4,966,302,784/32,387
  6. Step 6: Final answer
    x = 153,342.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.