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Finding the Fourth Proportional to 18,761.17, 25,882.39 and 10,801.71

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Solution

The fourth proportional to 18,761.17, 25,882.39 and 10,801.71 is: 14,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761.17 : 25,882.39 = 10,801.71 : x
  2. Step 2: Convert to fraction form
    18,761.17/25,882.39 = 10,801.71/x
  3. Step 3: Cross multiply
    18,761.17x = 25,882.39 × 10,801.71
  4. Step 4: Simplify right side
    18,761.17x = 279,573,987.33
  5. Step 5: Solve for x
    x = 279,573,987.33/18,761.17
  6. Step 6: Final answer
    x = 14,901.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.