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Finding the Fourth Proportional to 61,873.26, 85,385.15 and 33,578.94

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Solution

The fourth proportional to 61,873.26, 85,385.15 and 33,578.94 is: 46,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,873.26 : 85,385.15 = 33,578.94 : x
  2. Step 2: Convert to fraction form
    61,873.26/85,385.15 = 33,578.94/x
  3. Step 3: Cross multiply
    61,873.26x = 85,385.15 × 33,578.94
  4. Step 4: Simplify right side
    61,873.26x = 2,867,142,660.85
  5. Step 5: Solve for x
    x = 2,867,142,660.85/61,873.26
  6. Step 6: Final answer
    x = 46,338.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.