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Finding the Fourth Proportional to 48,493.89, 72,789.84 and 34,469.75

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Solution

The fourth proportional to 48,493.89, 72,789.84 and 34,469.75 is: 51,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,493.89 : 72,789.84 = 34,469.75 : x
  2. Step 2: Convert to fraction form
    48,493.89/72,789.84 = 34,469.75/x
  3. Step 3: Cross multiply
    48,493.89x = 72,789.84 × 34,469.75
  4. Step 4: Simplify right side
    48,493.89x = 2,509,047,769.31
  5. Step 5: Solve for x
    x = 2,509,047,769.31/48,493.89
  6. Step 6: Final answer
    x = 51,739.46

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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.