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Finding the Fourth Proportional to 40,163.40, 55,425.40 and 22,014.56

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Solution

The fourth proportional to 40,163.40, 55,425.40 and 22,014.56 is: 30,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,163.40 : 55,425.40 = 22,014.56 : x
  2. Step 2: Convert to fraction form
    40,163.40/55,425.40 = 22,014.56/x
  3. Step 3: Cross multiply
    40,163.40x = 55,425.40 × 22,014.56
  4. Step 4: Simplify right side
    40,163.40x = 1,220,165,793.82
  5. Step 5: Solve for x
    x = 1,220,165,793.82/40,163.40
  6. Step 6: Final answer
    x = 30,380.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.