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Finding the Fourth Proportional to 18,518.59, 27,793.44 and 7,996.56

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Solution

The fourth proportional to 18,518.59, 27,793.44 and 7,996.56 is: 12,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.59 : 27,793.44 = 7,996.56 : x
  2. Step 2: Convert to fraction form
    18,518.59/27,793.44 = 7,996.56/x
  3. Step 3: Cross multiply
    18,518.59x = 27,793.44 × 7,996.56
  4. Step 4: Simplify right side
    18,518.59x = 222,251,910.57
  5. Step 5: Solve for x
    x = 222,251,910.57/18,518.59
  6. Step 6: Final answer
    x = 12,001.56

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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.