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Finding the Fourth Proportional to 8,115.52, 11,199.42 and 4,579.48

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Solution

The fourth proportional to 8,115.52, 11,199.42 and 4,579.48 is: 6,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.52 : 11,199.42 = 4,579.48 : x
  2. Step 2: Convert to fraction form
    8,115.52/11,199.42 = 4,579.48/x
  3. Step 3: Cross multiply
    8,115.52x = 11,199.42 × 4,579.48
  4. Step 4: Simplify right side
    8,115.52x = 51,287,519.90
  5. Step 5: Solve for x
    x = 51,287,519.90/8,115.52
  6. Step 6: Final answer
    x = 6,319.68

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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.