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Finding the Fourth Proportional to 48,902.20, 73,338.90 and 19,310.20

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Solution

The fourth proportional to 48,902.20, 73,338.90 and 19,310.20 is: 28,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,902.20 : 73,338.90 = 19,310.20 : x
  2. Step 2: Convert to fraction form
    48,902.20/73,338.90 = 19,310.20/x
  3. Step 3: Cross multiply
    48,902.20x = 73,338.90 × 19,310.20
  4. Step 4: Simplify right side
    48,902.20x = 1,416,188,826.78
  5. Step 5: Solve for x
    x = 1,416,188,826.78/48,902.20
  6. Step 6: Final answer
    x = 28,959.61

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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.