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Finding the Fourth Proportional to 36,163.80, 54,253.80 and 13,975.20

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Solution

The fourth proportional to 36,163.80, 54,253.80 and 13,975.20 is: 20,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,163.80 : 54,253.80 = 13,975.20 : x
  2. Step 2: Convert to fraction form
    36,163.80/54,253.80 = 13,975.20/x
  3. Step 3: Cross multiply
    36,163.80x = 54,253.80 × 13,975.20
  4. Step 4: Simplify right side
    36,163.80x = 758,207,705.76
  5. Step 5: Solve for x
    x = 758,207,705.76/36,163.80
  6. Step 6: Final answer
    x = 20,965.93

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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.