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Finding the Fourth Proportional to 29,257.68, 43,891.98 and 11,728.88

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Solution

The fourth proportional to 29,257.68, 43,891.98 and 11,728.88 is: 17,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,257.68 : 43,891.98 = 11,728.88 : x
  2. Step 2: Convert to fraction form
    29,257.68/43,891.98 = 11,728.88/x
  3. Step 3: Cross multiply
    29,257.68x = 43,891.98 × 11,728.88
  4. Step 4: Simplify right side
    29,257.68x = 514,803,766.38
  5. Step 5: Solve for x
    x = 514,803,766.38/29,257.68
  6. Step 6: Final answer
    x = 17,595.51

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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.