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Finding the Fourth Proportional to 8,591.89, 12,887.85 and 4,694.17

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Solution

The fourth proportional to 8,591.89, 12,887.85 and 4,694.17 is: 7,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.89 : 12,887.85 = 4,694.17 : x
  2. Step 2: Convert to fraction form
    8,591.89/12,887.85 = 4,694.17/x
  3. Step 3: Cross multiply
    8,591.89x = 12,887.85 × 4,694.17
  4. Step 4: Simplify right side
    8,591.89x = 60,497,758.83
  5. Step 5: Solve for x
    x = 60,497,758.83/8,591.89
  6. Step 6: Final answer
    x = 7,041.26

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1.5x scale

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.