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Finding the Fourth Proportional to 57,586.44, 86,348.88 and 18,132.96

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Solution

The fourth proportional to 57,586.44, 86,348.88 and 18,132.96 is: 27,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,586.44 : 86,348.88 = 18,132.96 : x
  2. Step 2: Convert to fraction form
    57,586.44/86,348.88 = 18,132.96/x
  3. Step 3: Cross multiply
    57,586.44x = 86,348.88 × 18,132.96
  4. Step 4: Simplify right side
    57,586.44x = 1,565,760,787.08
  5. Step 5: Solve for x
    x = 1,565,760,787.08/57,586.44
  6. Step 6: Final answer
    x = 27,189.75

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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.