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Finding the Fourth Proportional to 18,041.85, 27,079.65 and 9,163.53

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Solution

The fourth proportional to 18,041.85, 27,079.65 and 9,163.53 is: 13,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.85 : 27,079.65 = 9,163.53 : x
  2. Step 2: Convert to fraction form
    18,041.85/27,079.65 = 9,163.53/x
  3. Step 3: Cross multiply
    18,041.85x = 27,079.65 × 9,163.53
  4. Step 4: Simplify right side
    18,041.85x = 248,145,185.16
  5. Step 5: Solve for x
    x = 248,145,185.16/18,041.85
  6. Step 6: Final answer
    x = 13,753.87

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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.