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Finding the Fourth Proportional to 71,629.26, 107,443.88 and 22,381.26

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Solution

The fourth proportional to 71,629.26, 107,443.88 and 22,381.26 is: 33,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,629.26 : 107,443.88 = 22,381.26 : x
  2. Step 2: Convert to fraction form
    71,629.26/107,443.88 = 22,381.26/x
  3. Step 3: Cross multiply
    71,629.26x = 107,443.88 × 22,381.26
  4. Step 4: Simplify right side
    71,629.26x = 2,404,729,413.69
  5. Step 5: Solve for x
    x = 2,404,729,413.69/71,629.26
  6. Step 6: Final answer
    x = 33,571.89

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1.5x scale

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.