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Finding the Fourth Proportional to 26,920.88, 40,382.94 and 8,452.88

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Solution

The fourth proportional to 26,920.88, 40,382.94 and 8,452.88 is: 12,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,920.88 : 40,382.94 = 8,452.88 : x
  2. Step 2: Convert to fraction form
    26,920.88/40,382.94 = 8,452.88/x
  3. Step 3: Cross multiply
    26,920.88x = 40,382.94 × 8,452.88
  4. Step 4: Simplify right side
    26,920.88x = 341,351,901.69
  5. Step 5: Solve for x
    x = 341,351,901.69/26,920.88
  6. Step 6: Final answer
    x = 12,679.82

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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.