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Finding the Fourth Proportional to 29,011.76, 43,517.56 and 8,235.28

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Solution

The fourth proportional to 29,011.76, 43,517.56 and 8,235.28 is: 12,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,011.76 : 43,517.56 = 8,235.28 : x
  2. Step 2: Convert to fraction form
    29,011.76/43,517.56 = 8,235.28/x
  3. Step 3: Cross multiply
    29,011.76x = 43,517.56 × 8,235.28
  4. Step 4: Simplify right side
    29,011.76x = 358,379,291.52
  5. Step 5: Solve for x
    x = 358,379,291.52/29,011.76
  6. Step 6: Final answer
    x = 12,352.90

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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.