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Finding the Fourth Proportional to 25,944.38, 38,922.05 and 8,412.85

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Solution

The fourth proportional to 25,944.38, 38,922.05 and 8,412.85 is: 12,621.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,944.38 : 38,922.05 = 8,412.85 : x
  2. Step 2: Convert to fraction form
    25,944.38/38,922.05 = 8,412.85/x
  3. Step 3: Cross multiply
    25,944.38x = 38,922.05 × 8,412.85
  4. Step 4: Simplify right side
    25,944.38x = 327,445,228.97
  5. Step 5: Solve for x
    x = 327,445,228.97/25,944.38
  6. Step 6: Final answer
    x = 12,621.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.