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Finding the Fourth Proportional to 48,908.34, 73,305.72 and 20,819.52

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Solution

The fourth proportional to 48,908.34, 73,305.72 and 20,819.52 is: 31,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,908.34 : 73,305.72 = 20,819.52 : x
  2. Step 2: Convert to fraction form
    48,908.34/73,305.72 = 20,819.52/x
  3. Step 3: Cross multiply
    48,908.34x = 73,305.72 × 20,819.52
  4. Step 4: Simplify right side
    48,908.34x = 1,526,189,903.65
  5. Step 5: Solve for x
    x = 1,526,189,903.65/48,908.34
  6. Step 6: Final answer
    x = 31,205.11

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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.