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Finding the Fourth Proportional to 29,312.53, 43,951.07 and 11,521.89

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Solution

The fourth proportional to 29,312.53, 43,951.07 and 11,521.89 is: 17,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.53 : 43,951.07 = 11,521.89 : x
  2. Step 2: Convert to fraction form
    29,312.53/43,951.07 = 11,521.89/x
  3. Step 3: Cross multiply
    29,312.53x = 43,951.07 × 11,521.89
  4. Step 4: Simplify right side
    29,312.53x = 506,399,422.73
  5. Step 5: Solve for x
    x = 506,399,422.73/29,312.53
  6. Step 6: Final answer
    x = 17,275.87

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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.