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Finding the Fourth Proportional to 18,413.31, 27,619.97 and 4,562.31

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Solution

The fourth proportional to 18,413.31, 27,619.97 and 4,562.31 is: 6,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.31 : 27,619.97 = 4,562.31 : x
  2. Step 2: Convert to fraction form
    18,413.31/27,619.97 = 4,562.31/x
  3. Step 3: Cross multiply
    18,413.31x = 27,619.97 × 4,562.31
  4. Step 4: Simplify right side
    18,413.31x = 126,010,865.33
  5. Step 5: Solve for x
    x = 126,010,865.33/18,413.31
  6. Step 6: Final answer
    x = 6,843.47

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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.