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Finding the Fourth Proportional to 25,956.56, 38,940.60 and 12,098

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Solution

The fourth proportional to 25,956.56, 38,940.60 and 12,098 is: 18,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,956.56 : 38,940.60 = 12,098 : x
  2. Step 2: Convert to fraction form
    25,956.56/38,940.60 = 12,098/x
  3. Step 3: Cross multiply
    25,956.56x = 38,940.60 × 12,098
  4. Step 4: Simplify right side
    25,956.56x = 471,103,378.80
  5. Step 5: Solve for x
    x = 471,103,378.80/25,956.56
  6. Step 6: Final answer
    x = 18,149.68

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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.