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Finding the Fourth Proportional to 8,153.78, 11,251.85 and 4,616.91

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Solution

The fourth proportional to 8,153.78, 11,251.85 and 4,616.91 is: 6,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.78 : 11,251.85 = 4,616.91 : x
  2. Step 2: Convert to fraction form
    8,153.78/11,251.85 = 4,616.91/x
  3. Step 3: Cross multiply
    8,153.78x = 11,251.85 × 4,616.91
  4. Step 4: Simplify right side
    8,153.78x = 51,948,755.70
  5. Step 5: Solve for x
    x = 51,948,755.70/8,153.78
  6. Step 6: Final answer
    x = 6,371.13

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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.