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Finding the Third Proportional to 32,480 and 67,424

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Solution

The third proportional to 32,480 and 67,424 is: 139,962.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,480 : 67,424 = 67,424 : x
  2. Step 2: Convert to fraction form
    32,480/67,424 = 67,424/x
  3. Step 3: Cross multiply
    32,480x = 67,424 × 67,424
  4. Step 4: Simplify right side
    32,480x = 4,545,995,776
  5. Step 5: Solve for x
    x = 4,545,995,776/32,480
  6. Step 6: Final answer
    x = 139,962.92

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.