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Finding the Third Proportional to 47,422 and 102,728

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Solution

The third proportional to 47,422 and 102,728 is: 222,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,422 : 102,728 = 102,728 : x
  2. Step 2: Convert to fraction form
    47,422/102,728 = 102,728/x
  3. Step 3: Cross multiply
    47,422x = 102,728 × 102,728
  4. Step 4: Simplify right side
    47,422x = 10,553,041,984
  5. Step 5: Solve for x
    x = 10,553,041,984/47,422
  6. Step 6: Final answer
    x = 222,534.73

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.