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Finding the Fourth Proportional to 18,793.52, 28,188.12 and 6,313.04

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Solution

The fourth proportional to 18,793.52, 28,188.12 and 6,313.04 is: 9,468.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.52 : 28,188.12 = 6,313.04 : x
  2. Step 2: Convert to fraction form
    18,793.52/28,188.12 = 6,313.04/x
  3. Step 3: Cross multiply
    18,793.52x = 28,188.12 × 6,313.04
  4. Step 4: Simplify right side
    18,793.52x = 177,952,729.08
  5. Step 5: Solve for x
    x = 177,952,729.08/18,793.52
  6. Step 6: Final answer
    x = 9,468.83

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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.