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Finding the Fourth Proportional to 18,049.93, 27,080.36 and 8,186.56

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Solution

The fourth proportional to 18,049.93, 27,080.36 and 8,186.56 is: 12,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,049.93 : 27,080.36 = 8,186.56 : x
  2. Step 2: Convert to fraction form
    18,049.93/27,080.36 = 8,186.56/x
  3. Step 3: Cross multiply
    18,049.93x = 27,080.36 × 8,186.56
  4. Step 4: Simplify right side
    18,049.93x = 221,694,991.96
  5. Step 5: Solve for x
    x = 221,694,991.96/18,049.93
  6. Step 6: Final answer
    x = 12,282.32

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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.