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Finding the Fourth Proportional to 66,243.25, 91,413.73 and 37,565.54

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Solution

The fourth proportional to 66,243.25, 91,413.73 and 37,565.54 is: 51,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,243.25 : 91,413.73 = 37,565.54 : x
  2. Step 2: Convert to fraction form
    66,243.25/91,413.73 = 37,565.54/x
  3. Step 3: Cross multiply
    66,243.25x = 91,413.73 × 37,565.54
  4. Step 4: Simplify right side
    66,243.25x = 3,434,006,063.55
  5. Step 5: Solve for x
    x = 3,434,006,063.55/66,243.25
  6. Step 6: Final answer
    x = 51,839.33

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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.