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Finding the Fourth Proportional to 8,591.44, 12,874.92 and 5,082.16

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Solution

The fourth proportional to 8,591.44, 12,874.92 and 5,082.16 is: 7,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.44 : 12,874.92 = 5,082.16 : x
  2. Step 2: Convert to fraction form
    8,591.44/12,874.92 = 5,082.16/x
  3. Step 3: Cross multiply
    8,591.44x = 12,874.92 × 5,082.16
  4. Step 4: Simplify right side
    8,591.44x = 65,432,403.43
  5. Step 5: Solve for x
    x = 65,432,403.43/8,591.44
  6. Step 6: Final answer
    x = 7,616.00

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