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Finding the Fourth Proportional to 45,286.80, 67,930.20 and 33,622.80

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Solution

The fourth proportional to 45,286.80, 67,930.20 and 33,622.80 is: 50,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,286.80 : 67,930.20 = 33,622.80 : x
  2. Step 2: Convert to fraction form
    45,286.80/67,930.20 = 33,622.80/x
  3. Step 3: Cross multiply
    45,286.80x = 67,930.20 × 33,622.80
  4. Step 4: Simplify right side
    45,286.80x = 2,284,003,528.56
  5. Step 5: Solve for x
    x = 2,284,003,528.56/45,286.80
  6. Step 6: Final answer
    x = 50,434.20

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Similar ratio
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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.