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Finding the Fourth Proportional to 9,013.70, 12,439.26 and 5,236.82

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Solution

The fourth proportional to 9,013.70, 12,439.26 and 5,236.82 is: 7,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.70 : 12,439.26 = 5,236.82 : x
  2. Step 2: Convert to fraction form
    9,013.70/12,439.26 = 5,236.82/x
  3. Step 3: Cross multiply
    9,013.70x = 12,439.26 × 5,236.82
  4. Step 4: Simplify right side
    9,013.70x = 65,142,165.55
  5. Step 5: Solve for x
    x = 65,142,165.55/9,013.70
  6. Step 6: Final answer
    x = 7,227.02

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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.