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Finding the Fourth Proportional to 25,600.39, 38,396.94 and 8,067.94

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Solution

The fourth proportional to 25,600.39, 38,396.94 and 8,067.94 is: 12,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,600.39 : 38,396.94 = 8,067.94 : x
  2. Step 2: Convert to fraction form
    25,600.39/38,396.94 = 8,067.94/x
  3. Step 3: Cross multiply
    25,600.39x = 38,396.94 × 8,067.94
  4. Step 4: Simplify right side
    25,600.39x = 309,784,081.86
  5. Step 5: Solve for x
    x = 309,784,081.86/25,600.39
  6. Step 6: Final answer
    x = 12,100.76

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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.