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Finding the Fourth Proportional to 61,876.01, 85,388.92 and 33,581.69

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Solution

The fourth proportional to 61,876.01, 85,388.92 and 33,581.69 is: 46,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,876.01 : 85,388.92 = 33,581.69 : x
  2. Step 2: Convert to fraction form
    61,876.01/85,388.92 = 33,581.69/x
  3. Step 3: Cross multiply
    61,876.01x = 85,388.92 × 33,581.69
  4. Step 4: Simplify right side
    61,876.01x = 2,867,504,370.39
  5. Step 5: Solve for x
    x = 2,867,504,370.39/61,876.01
  6. Step 6: Final answer
    x = 46,342.75

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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.