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Finding the Fourth Proportional to 8,591.59, 12,891.45 and 4,695.88

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Solution

The fourth proportional to 8,591.59, 12,891.45 and 4,695.88 is: 7,046.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.59 : 12,891.45 = 4,695.88 : x
  2. Step 2: Convert to fraction form
    8,591.59/12,891.45 = 4,695.88/x
  3. Step 3: Cross multiply
    8,591.59x = 12,891.45 × 4,695.88
  4. Step 4: Simplify right side
    8,591.59x = 60,536,702.23
  5. Step 5: Solve for x
    x = 60,536,702.23/8,591.59
  6. Step 6: Final answer
    x = 7,046.04

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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.