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Finding the Fourth Proportional to 57,673.80, 86,502.60 and 18,234.90

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Solution

The fourth proportional to 57,673.80, 86,502.60 and 18,234.90 is: 27,349.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,673.80 : 86,502.60 = 18,234.90 : x
  2. Step 2: Convert to fraction form
    57,673.80/86,502.60 = 18,234.90/x
  3. Step 3: Cross multiply
    57,673.80x = 86,502.60 × 18,234.90
  4. Step 4: Simplify right side
    57,673.80x = 1,577,366,260.74
  5. Step 5: Solve for x
    x = 1,577,366,260.74/57,673.80
  6. Step 6: Final answer
    x = 27,349.79

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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.