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Finding the Fourth Proportional to 25,861.92, 38,799.36 and 8,331.36

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Solution

The fourth proportional to 25,861.92, 38,799.36 and 8,331.36 is: 12,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.92 : 38,799.36 = 8,331.36 : x
  2. Step 2: Convert to fraction form
    25,861.92/38,799.36 = 8,331.36/x
  3. Step 3: Cross multiply
    25,861.92x = 38,799.36 × 8,331.36
  4. Step 4: Simplify right side
    25,861.92x = 323,251,435.93
  5. Step 5: Solve for x
    x = 323,251,435.93/25,861.92
  6. Step 6: Final answer
    x = 12,499.13

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1.5x scale

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.