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Finding the Fourth Proportional to 29,145.52, 43,708.20 and 18,035.20

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Solution

The fourth proportional to 29,145.52, 43,708.20 and 18,035.20 is: 27,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.52 : 43,708.20 = 18,035.20 : x
  2. Step 2: Convert to fraction form
    29,145.52/43,708.20 = 18,035.20/x
  3. Step 3: Cross multiply
    29,145.52x = 43,708.20 × 18,035.20
  4. Step 4: Simplify right side
    29,145.52x = 788,286,128.64
  5. Step 5: Solve for x
    x = 788,286,128.64/29,145.52
  6. Step 6: Final answer
    x = 27,046.56

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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.