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Finding the Fourth Proportional to 29,039.92, 43,566.15 and 9,318.34

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Solution

The fourth proportional to 29,039.92, 43,566.15 and 9,318.34 is: 13,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,039.92 : 43,566.15 = 9,318.34 : x
  2. Step 2: Convert to fraction form
    29,039.92/43,566.15 = 9,318.34/x
  3. Step 3: Cross multiply
    29,039.92x = 43,566.15 × 9,318.34
  4. Step 4: Simplify right side
    29,039.92x = 405,964,287.59
  5. Step 5: Solve for x
    x = 405,964,287.59/29,039.92
  6. Step 6: Final answer
    x = 13,979.53

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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.