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Finding the Fourth Proportional to 73,414.33, 101,309.04 and 39,879.61

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Solution

The fourth proportional to 73,414.33, 101,309.04 and 39,879.61 is: 55,032.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,414.33 : 101,309.04 = 39,879.61 : x
  2. Step 2: Convert to fraction form
    73,414.33/101,309.04 = 39,879.61/x
  3. Step 3: Cross multiply
    73,414.33x = 101,309.04 × 39,879.61
  4. Step 4: Simplify right side
    73,414.33x = 4,040,165,004.67
  5. Step 5: Solve for x
    x = 4,040,165,004.67/73,414.33
  6. Step 6: Final answer
    x = 55,032.38

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1.5x scale

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.