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Finding the Fourth Proportional to 33,163.80, 49,745.70 and 30,629.40

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Solution

The fourth proportional to 33,163.80, 49,745.70 and 30,629.40 is: 45,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,163.80 : 49,745.70 = 30,629.40 : x
  2. Step 2: Convert to fraction form
    33,163.80/49,745.70 = 30,629.40/x
  3. Step 3: Cross multiply
    33,163.80x = 49,745.70 × 30,629.40
  4. Step 4: Simplify right side
    33,163.80x = 1,523,680,943.58
  5. Step 5: Solve for x
    x = 1,523,680,943.58/33,163.80
  6. Step 6: Final answer
    x = 45,944.10

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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.