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Finding the Fourth Proportional to 45,258.78, 67,894.12 and 16,791.85

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Solution

The fourth proportional to 45,258.78, 67,894.12 and 16,791.85 is: 25,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,258.78 : 67,894.12 = 16,791.85 : x
  2. Step 2: Convert to fraction form
    45,258.78/67,894.12 = 16,791.85/x
  3. Step 3: Cross multiply
    45,258.78x = 67,894.12 × 16,791.85
  4. Step 4: Simplify right side
    45,258.78x = 1,140,067,794.96
  5. Step 5: Solve for x
    x = 1,140,067,794.96/45,258.78
  6. Step 6: Final answer
    x = 25,189.98

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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.