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Finding the Fourth Proportional to 25,606.88, 38,403.84 and 8,067.68

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Solution

The fourth proportional to 25,606.88, 38,403.84 and 8,067.68 is: 12,099.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,606.88 : 38,403.84 = 8,067.68 : x
  2. Step 2: Convert to fraction form
    25,606.88/38,403.84 = 8,067.68/x
  3. Step 3: Cross multiply
    25,606.88x = 38,403.84 × 8,067.68
  4. Step 4: Simplify right side
    25,606.88x = 309,829,891.89
  5. Step 5: Solve for x
    x = 309,829,891.89/25,606.88
  6. Step 6: Final answer
    x = 12,099.48

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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.