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Finding the Fourth Proportional to 18,481.44, 27,698.04 and 8,482.56

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Solution

The fourth proportional to 18,481.44, 27,698.04 and 8,482.56 is: 12,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.44 : 27,698.04 = 8,482.56 : x
  2. Step 2: Convert to fraction form
    18,481.44/27,698.04 = 8,482.56/x
  3. Step 3: Cross multiply
    18,481.44x = 27,698.04 × 8,482.56
  4. Step 4: Simplify right side
    18,481.44x = 234,950,286.18
  5. Step 5: Solve for x
    x = 234,950,286.18/18,481.44
  6. Step 6: Final answer
    x = 12,712.77

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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.