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Finding the Fourth Proportional to 12,472.80, 18,693.60 and 6,234.56

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Solution

The fourth proportional to 12,472.80, 18,693.60 and 6,234.56 is: 9,344.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.80 : 18,693.60 = 6,234.56 : x
  2. Step 2: Convert to fraction form
    12,472.80/18,693.60 = 6,234.56/x
  3. Step 3: Cross multiply
    12,472.80x = 18,693.60 × 6,234.56
  4. Step 4: Simplify right side
    12,472.80x = 116,546,370.82
  5. Step 5: Solve for x
    x = 116,546,370.82/12,472.80
  6. Step 6: Final answer
    x = 9,344.04

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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.