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Finding the Third Proportional to 53,272 and 80,884

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Solution

The third proportional to 53,272 and 80,884 is: 122,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,272 : 80,884 = 80,884 : x
  2. Step 2: Convert to fraction form
    53,272/80,884 = 80,884/x
  3. Step 3: Cross multiply
    53,272x = 80,884 × 80,884
  4. Step 4: Simplify right side
    53,272x = 6,542,221,456
  5. Step 5: Solve for x
    x = 6,542,221,456/53,272
  6. Step 6: Final answer
    x = 122,807.88

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.