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Finding the Fourth Proportional to 8,672.41, 13,008.60 and 3,474.64

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Solution

The fourth proportional to 8,672.41, 13,008.60 and 3,474.64 is: 5,211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.41 : 13,008.60 = 3,474.64 : x
  2. Step 2: Convert to fraction form
    8,672.41/13,008.60 = 3,474.64/x
  3. Step 3: Cross multiply
    8,672.41x = 13,008.60 × 3,474.64
  4. Step 4: Simplify right side
    8,672.41x = 45,200,201.90
  5. Step 5: Solve for x
    x = 45,200,201.90/8,672.41
  6. Step 6: Final answer
    x = 5,211.95

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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.