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Finding the Fourth Proportional to 8,872.59, 13,317.08 and 4,493.12

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Solution

The fourth proportional to 8,872.59, 13,317.08 and 4,493.12 is: 6,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.59 : 13,317.08 = 4,493.12 : x
  2. Step 2: Convert to fraction form
    8,872.59/13,317.08 = 4,493.12/x
  3. Step 3: Cross multiply
    8,872.59x = 13,317.08 × 4,493.12
  4. Step 4: Simplify right side
    8,872.59x = 59,835,262.26
  5. Step 5: Solve for x
    x = 59,835,262.26/8,872.59
  6. Step 6: Final answer
    x = 6,743.83

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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.