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Finding the Fourth Proportional to 9,163.72, 13,751.22 and 3,616.12

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Solution

The fourth proportional to 9,163.72, 13,751.22 and 3,616.12 is: 5,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.72 : 13,751.22 = 3,616.12 : x
  2. Step 2: Convert to fraction form
    9,163.72/13,751.22 = 3,616.12/x
  3. Step 3: Cross multiply
    9,163.72x = 13,751.22 × 3,616.12
  4. Step 4: Simplify right side
    9,163.72x = 49,726,061.67
  5. Step 5: Solve for x
    x = 49,726,061.67/9,163.72
  6. Step 6: Final answer
    x = 5,426.41

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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.