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Finding the Fourth Proportional to 54,871.75, 75,723.03 and 29,721.25

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Solution

The fourth proportional to 54,871.75, 75,723.03 and 29,721.25 is: 41,015.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,871.75 : 75,723.03 = 29,721.25 : x
  2. Step 2: Convert to fraction form
    54,871.75/75,723.03 = 29,721.25/x
  3. Step 3: Cross multiply
    54,871.75x = 75,723.03 × 29,721.25
  4. Step 4: Simplify right side
    54,871.75x = 2,250,583,105.39
  5. Step 5: Solve for x
    x = 2,250,583,105.39/54,871.75
  6. Step 6: Final answer
    x = 41,015.33

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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.