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Finding the Fourth Proportional to 5,334.53, 8,002.20 and 3,891.11

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Solution

The fourth proportional to 5,334.53, 8,002.20 and 3,891.11 is: 5,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.53 : 8,002.20 = 3,891.11 : x
  2. Step 2: Convert to fraction form
    5,334.53/8,002.20 = 3,891.11/x
  3. Step 3: Cross multiply
    5,334.53x = 8,002.20 × 3,891.11
  4. Step 4: Simplify right side
    5,334.53x = 31,137,440.44
  5. Step 5: Solve for x
    x = 31,137,440.44/5,334.53
  6. Step 6: Final answer
    x = 5,836.96

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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.