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Finding the Fourth Proportional to 84,753.52, 127,131.20 and 25,589.68

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Solution

The fourth proportional to 84,753.52, 127,131.20 and 25,589.68 is: 38,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,753.52 : 127,131.20 = 25,589.68 : x
  2. Step 2: Convert to fraction form
    84,753.52/127,131.20 = 25,589.68/x
  3. Step 3: Cross multiply
    84,753.52x = 127,131.20 × 25,589.68
  4. Step 4: Simplify right side
    84,753.52x = 3,253,246,726.02
  5. Step 5: Solve for x
    x = 3,253,246,726.02/84,753.52
  6. Step 6: Final answer
    x = 38,384.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.