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Finding the Fourth Proportional to 61,618.78, 85,033.92 and 33,324.46

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Solution

The fourth proportional to 61,618.78, 85,033.92 and 33,324.46 is: 45,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,618.78 : 85,033.92 = 33,324.46 : x
  2. Step 2: Convert to fraction form
    61,618.78/85,033.92 = 33,324.46/x
  3. Step 3: Cross multiply
    61,618.78x = 85,033.92 × 33,324.46
  4. Step 4: Simplify right side
    61,618.78x = 2,833,709,465.68
  5. Step 5: Solve for x
    x = 2,833,709,465.68/61,618.78
  6. Step 6: Final answer
    x = 45,987.76

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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.