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Finding the Fourth Proportional to 48,874.20, 73,296.90 and 19,282.20

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Solution

The fourth proportional to 48,874.20, 73,296.90 and 19,282.20 is: 28,917.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,874.20 : 73,296.90 = 19,282.20 : x
  2. Step 2: Convert to fraction form
    48,874.20/73,296.90 = 19,282.20/x
  3. Step 3: Cross multiply
    48,874.20x = 73,296.90 × 19,282.20
  4. Step 4: Simplify right side
    48,874.20x = 1,413,325,485.18
  5. Step 5: Solve for x
    x = 1,413,325,485.18/48,874.20
  6. Step 6: Final answer
    x = 28,917.62

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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.