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Finding the Fourth Proportional to 48,863.70, 73,295.55 and 45,947.70

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Solution

The fourth proportional to 48,863.70, 73,295.55 and 45,947.70 is: 68,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,863.70 : 73,295.55 = 45,947.70 : x
  2. Step 2: Convert to fraction form
    48,863.70/73,295.55 = 45,947.70/x
  3. Step 3: Cross multiply
    48,863.70x = 73,295.55 × 45,947.70
  4. Step 4: Simplify right side
    48,863.70x = 3,367,761,942.74
  5. Step 5: Solve for x
    x = 3,367,761,942.74/48,863.70
  6. Step 6: Final answer
    x = 68,921.55

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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.