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Finding the Fourth Proportional to 18,163.29, 27,246.50 and 5,015.66

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Solution

The fourth proportional to 18,163.29, 27,246.50 and 5,015.66 is: 7,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.29 : 27,246.50 = 5,015.66 : x
  2. Step 2: Convert to fraction form
    18,163.29/27,246.50 = 5,015.66/x
  3. Step 3: Cross multiply
    18,163.29x = 27,246.50 × 5,015.66
  4. Step 4: Simplify right side
    18,163.29x = 136,659,180.19
  5. Step 5: Solve for x
    x = 136,659,180.19/18,163.29
  6. Step 6: Final answer
    x = 7,523.92

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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.