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Finding the Fourth Proportional to 18,550.50, 27,824.52 and 8,691.98

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Solution

The fourth proportional to 18,550.50, 27,824.52 and 8,691.98 is: 13,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.50 : 27,824.52 = 8,691.98 : x
  2. Step 2: Convert to fraction form
    18,550.50/27,824.52 = 8,691.98/x
  3. Step 3: Cross multiply
    18,550.50x = 27,824.52 × 8,691.98
  4. Step 4: Simplify right side
    18,550.50x = 241,850,171.35
  5. Step 5: Solve for x
    x = 241,850,171.35/18,550.50
  6. Step 6: Final answer
    x = 13,037.39

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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.