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Finding the Fourth Proportional to 18,560.88, 27,845.41 and 5,414.28

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Solution

The fourth proportional to 18,560.88, 27,845.41 and 5,414.28 is: 8,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.88 : 27,845.41 = 5,414.28 : x
  2. Step 2: Convert to fraction form
    18,560.88/27,845.41 = 5,414.28/x
  3. Step 3: Cross multiply
    18,560.88x = 27,845.41 × 5,414.28
  4. Step 4: Simplify right side
    18,560.88x = 150,762,680.16
  5. Step 5: Solve for x
    x = 150,762,680.16/18,560.88
  6. Step 6: Final answer
    x = 8,122.61

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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.