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Finding the Fourth Proportional to 12,067.35, 16,621.79 and 8,524.41

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Solution

The fourth proportional to 12,067.35, 16,621.79 and 8,524.41 is: 11,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067.35 : 16,621.79 = 8,524.41 : x
  2. Step 2: Convert to fraction form
    12,067.35/16,621.79 = 8,524.41/x
  3. Step 3: Cross multiply
    12,067.35x = 16,621.79 × 8,524.41
  4. Step 4: Simplify right side
    12,067.35x = 141,690,910.27
  5. Step 5: Solve for x
    x = 141,690,910.27/12,067.35
  6. Step 6: Final answer
    x = 11,741.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.