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Finding the Fourth Proportional to 18,793.26, 28,188.92 and 6,313.39

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Solution

The fourth proportional to 18,793.26, 28,188.92 and 6,313.39 is: 9,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.26 : 28,188.92 = 6,313.39 : x
  2. Step 2: Convert to fraction form
    18,793.26/28,188.92 = 6,313.39/x
  3. Step 3: Cross multiply
    18,793.26x = 28,188.92 × 6,313.39
  4. Step 4: Simplify right side
    18,793.26x = 177,967,590.95
  5. Step 5: Solve for x
    x = 177,967,590.95/18,793.26
  6. Step 6: Final answer
    x = 9,469.76

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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.