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Finding the Fourth Proportional to 29,011.53, 43,517.32 and 7,951.80

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Solution

The fourth proportional to 29,011.53, 43,517.32 and 7,951.80 is: 11,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,011.53 : 43,517.32 = 7,951.80 : x
  2. Step 2: Convert to fraction form
    29,011.53/43,517.32 = 7,951.80/x
  3. Step 3: Cross multiply
    29,011.53x = 43,517.32 × 7,951.80
  4. Step 4: Simplify right side
    29,011.53x = 346,041,168.49
  5. Step 5: Solve for x
    x = 346,041,168.49/29,011.53
  6. Step 6: Final answer
    x = 11,927.71

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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.