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Finding the Fourth Proportional to 12,049.43, 16,616.54 and 9,395.87

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Solution

The fourth proportional to 12,049.43, 16,616.54 and 9,395.87 is: 12,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049.43 : 16,616.54 = 9,395.87 : x
  2. Step 2: Convert to fraction form
    12,049.43/16,616.54 = 9,395.87/x
  3. Step 3: Cross multiply
    12,049.43x = 16,616.54 × 9,395.87
  4. Step 4: Simplify right side
    12,049.43x = 156,126,719.63
  5. Step 5: Solve for x
    x = 156,126,719.63/12,049.43
  6. Step 6: Final answer
    x = 12,957.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.