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Finding the Fourth Proportional to 10,393.52, 15,591.82 and 3,819.19

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Solution

The fourth proportional to 10,393.52, 15,591.82 and 3,819.19 is: 5,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,393.52 : 15,591.82 = 3,819.19 : x
  2. Step 2: Convert to fraction form
    10,393.52/15,591.82 = 3,819.19/x
  3. Step 3: Cross multiply
    10,393.52x = 15,591.82 × 3,819.19
  4. Step 4: Simplify right side
    10,393.52x = 59,548,147.29
  5. Step 5: Solve for x
    x = 59,548,147.29/10,393.52
  6. Step 6: Final answer
    x = 5,729.35

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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.