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Finding the Fourth Proportional to 43,908.70, 65,863.05 and 41,721.70

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Solution

The fourth proportional to 43,908.70, 65,863.05 and 41,721.70 is: 62,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,908.70 : 65,863.05 = 41,721.70 : x
  2. Step 2: Convert to fraction form
    43,908.70/65,863.05 = 41,721.70/x
  3. Step 3: Cross multiply
    43,908.70x = 65,863.05 × 41,721.70
  4. Step 4: Simplify right side
    43,908.70x = 2,747,918,413.19
  5. Step 5: Solve for x
    x = 2,747,918,413.19/43,908.70
  6. Step 6: Final answer
    x = 62,582.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.