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Finding the Fourth Proportional to 25,459.64, 38,184.38 and 8,591

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Solution

The fourth proportional to 25,459.64, 38,184.38 and 8,591 is: 12,884.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.64 : 38,184.38 = 8,591 : x
  2. Step 2: Convert to fraction form
    25,459.64/38,184.38 = 8,591/x
  3. Step 3: Cross multiply
    25,459.64x = 38,184.38 × 8,591
  4. Step 4: Simplify right side
    25,459.64x = 328,042,008.58
  5. Step 5: Solve for x
    x = 328,042,008.58/25,459.64
  6. Step 6: Final answer
    x = 12,884.79

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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.