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Finding the Fourth Proportional to 8,851.20, 13,279.87 and 3,924.30

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Solution

The fourth proportional to 8,851.20, 13,279.87 and 3,924.30 is: 5,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.20 : 13,279.87 = 3,924.30 : x
  2. Step 2: Convert to fraction form
    8,851.20/13,279.87 = 3,924.30/x
  3. Step 3: Cross multiply
    8,851.20x = 13,279.87 × 3,924.30
  4. Step 4: Simplify right side
    8,851.20x = 52,114,184.88
  5. Step 5: Solve for x
    x = 52,114,184.88/8,851.20
  6. Step 6: Final answer
    x = 5,887.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.