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Finding the Fourth Proportional to 18,793.15, 28,188.72 and 6,313.27

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Solution

The fourth proportional to 18,793.15, 28,188.72 and 6,313.27 is: 9,469.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.15 : 28,188.72 = 6,313.27 : x
  2. Step 2: Convert to fraction form
    18,793.15/28,188.72 = 6,313.27/x
  3. Step 3: Cross multiply
    18,793.15x = 28,188.72 × 6,313.27
  4. Step 4: Simplify right side
    18,793.15x = 177,963,000.31
  5. Step 5: Solve for x
    x = 177,963,000.31/18,793.15
  6. Step 6: Final answer
    x = 9,469.57

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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.