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Finding the Fourth Proportional to 8,387.59, 11,575.17 and 4,611.19

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Solution

The fourth proportional to 8,387.59, 11,575.17 and 4,611.19 is: 6,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.59 : 11,575.17 = 4,611.19 : x
  2. Step 2: Convert to fraction form
    8,387.59/11,575.17 = 4,611.19/x
  3. Step 3: Cross multiply
    8,387.59x = 11,575.17 × 4,611.19
  4. Step 4: Simplify right side
    8,387.59x = 53,375,308.15
  5. Step 5: Solve for x
    x = 53,375,308.15/8,387.59
  6. Step 6: Final answer
    x = 6,363.60

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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.