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Finding the Fourth Proportional to 18,794.62, 28,193.16 and 6,313.66

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Solution

The fourth proportional to 18,794.62, 28,193.16 and 6,313.66 is: 9,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.62 : 28,193.16 = 6,313.66 : x
  2. Step 2: Convert to fraction form
    18,794.62/28,193.16 = 6,313.66/x
  3. Step 3: Cross multiply
    18,794.62x = 28,193.16 × 6,313.66
  4. Step 4: Simplify right side
    18,794.62x = 178,002,026.57
  5. Step 5: Solve for x
    x = 178,002,026.57/18,794.62
  6. Step 6: Final answer
    x = 9,470.90

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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.