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Finding the Fourth Proportional to 29,138.60, 43,727.10 and 16,658.60

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Solution

The fourth proportional to 29,138.60, 43,727.10 and 16,658.60 is: 24,998.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.60 : 43,727.10 = 16,658.60 : x
  2. Step 2: Convert to fraction form
    29,138.60/43,727.10 = 16,658.60/x
  3. Step 3: Cross multiply
    29,138.60x = 43,727.10 × 16,658.60
  4. Step 4: Simplify right side
    29,138.60x = 728,432,268.06
  5. Step 5: Solve for x
    x = 728,432,268.06/29,138.60
  6. Step 6: Final answer
    x = 24,998.88

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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.