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Finding the Fourth Proportional to 26,414.44, 39,625.92 and 8,639.92

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Solution

The fourth proportional to 26,414.44, 39,625.92 and 8,639.92 is: 12,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,414.44 : 39,625.92 = 8,639.92 : x
  2. Step 2: Convert to fraction form
    26,414.44/39,625.92 = 8,639.92/x
  3. Step 3: Cross multiply
    26,414.44x = 39,625.92 × 8,639.92
  4. Step 4: Simplify right side
    26,414.44x = 342,364,778.73
  5. Step 5: Solve for x
    x = 342,364,778.73/26,414.44
  6. Step 6: Final answer
    x = 12,961.27

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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.