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Finding the Fourth Proportional to 18,793.50, 28,194.57 and 6,481.50

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Solution

The fourth proportional to 18,793.50, 28,194.57 and 6,481.50 is: 9,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.50 : 28,194.57 = 6,481.50 : x
  2. Step 2: Convert to fraction form
    18,793.50/28,194.57 = 6,481.50/x
  3. Step 3: Cross multiply
    18,793.50x = 28,194.57 × 6,481.50
  4. Step 4: Simplify right side
    18,793.50x = 182,743,105.46
  5. Step 5: Solve for x
    x = 182,743,105.46/18,793.50
  6. Step 6: Final answer
    x = 9,723.74

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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.