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Finding the Third Proportional to 22,456 and 38,553

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Solution

The third proportional to 22,456 and 38,553 is: 66,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,456 : 38,553 = 38,553 : x
  2. Step 2: Convert to fraction form
    22,456/38,553 = 38,553/x
  3. Step 3: Cross multiply
    22,456x = 38,553 × 38,553
  4. Step 4: Simplify right side
    22,456x = 1,486,333,809
  5. Step 5: Solve for x
    x = 1,486,333,809/22,456
  6. Step 6: Final answer
    x = 66,188.72

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.