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Finding the Fourth Proportional to 49,858.62, 74,789.04 and 18,676.86

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Solution

The fourth proportional to 49,858.62, 74,789.04 and 18,676.86 is: 28,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,858.62 : 74,789.04 = 18,676.86 : x
  2. Step 2: Convert to fraction form
    49,858.62/74,789.04 = 18,676.86/x
  3. Step 3: Cross multiply
    49,858.62x = 74,789.04 × 18,676.86
  4. Step 4: Simplify right side
    49,858.62x = 1,396,824,429.61
  5. Step 5: Solve for x
    x = 1,396,824,429.61/49,858.62
  6. Step 6: Final answer
    x = 28,015.71

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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.