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Finding the Fourth Proportional to 44,764.88, 67,413.81 and 38,991.20

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Solution

The fourth proportional to 44,764.88, 67,413.81 and 38,991.20 is: 58,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,764.88 : 67,413.81 = 38,991.20 : x
  2. Step 2: Convert to fraction form
    44,764.88/67,413.81 = 38,991.20/x
  3. Step 3: Cross multiply
    44,764.88x = 67,413.81 × 38,991.20
  4. Step 4: Simplify right side
    44,764.88x = 2,628,545,348.47
  5. Step 5: Solve for x
    x = 2,628,545,348.47/44,764.88
  6. Step 6: Final answer
    x = 58,718.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.