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Finding the Third Proportional to 38,822 and 82,728

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Solution

The third proportional to 38,822 and 82,728 is: 176,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,822 : 82,728 = 82,728 : x
  2. Step 2: Convert to fraction form
    38,822/82,728 = 82,728/x
  3. Step 3: Cross multiply
    38,822x = 82,728 × 82,728
  4. Step 4: Simplify right side
    38,822x = 6,843,921,984
  5. Step 5: Solve for x
    x = 6,843,921,984/38,822
  6. Step 6: Final answer
    x = 176,289.78

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.