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Finding the Fourth Proportional to 12,049.44, 18,156.48 and 9,906.18

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Solution

The fourth proportional to 12,049.44, 18,156.48 and 9,906.18 is: 14,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049.44 : 18,156.48 = 9,906.18 : x
  2. Step 2: Convert to fraction form
    12,049.44/18,156.48 = 9,906.18/x
  3. Step 3: Cross multiply
    12,049.44x = 18,156.48 × 9,906.18
  4. Step 4: Simplify right side
    12,049.44x = 179,861,359.05
  5. Step 5: Solve for x
    x = 179,861,359.05/12,049.44
  6. Step 6: Final answer
    x = 14,926.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.