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Finding the Fourth Proportional to 54,879.81, 75,734.37 and 29,729.31

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Solution

The fourth proportional to 54,879.81, 75,734.37 and 29,729.31 is: 41,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,879.81 : 75,734.37 = 29,729.31 : x
  2. Step 2: Convert to fraction form
    54,879.81/75,734.37 = 29,729.31/x
  3. Step 3: Cross multiply
    54,879.81x = 75,734.37 × 29,729.31
  4. Step 4: Simplify right side
    54,879.81x = 2,251,530,563.38
  5. Step 5: Solve for x
    x = 2,251,530,563.38/54,879.81
  6. Step 6: Final answer
    x = 41,026.57

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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.