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Finding the Fourth Proportional to 29,279.14, 40,404.87 and 15,850.10

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Solution

The fourth proportional to 29,279.14, 40,404.87 and 15,850.10 is: 21,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,279.14 : 40,404.87 = 15,850.10 : x
  2. Step 2: Convert to fraction form
    29,279.14/40,404.87 = 15,850.10/x
  3. Step 3: Cross multiply
    29,279.14x = 40,404.87 × 15,850.10
  4. Step 4: Simplify right side
    29,279.14x = 640,421,137.91
  5. Step 5: Solve for x
    x = 640,421,137.91/29,279.14
  6. Step 6: Final answer
    x = 21,872.95

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