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Finding the Fourth Proportional to 29,287.05, 43,934.87 and 9,289.87

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Solution

The fourth proportional to 29,287.05, 43,934.87 and 9,289.87 is: 13,936.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.05 : 43,934.87 = 9,289.87 : x
  2. Step 2: Convert to fraction form
    29,287.05/43,934.87 = 9,289.87/x
  3. Step 3: Cross multiply
    29,287.05x = 43,934.87 × 9,289.87
  4. Step 4: Simplify right side
    29,287.05x = 408,149,230.77
  5. Step 5: Solve for x
    x = 408,149,230.77/29,287.05
  6. Step 6: Final answer
    x = 13,936.17

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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.