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Finding the Fourth Proportional to 18,413.82, 27,620.72 and 4,562.82

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Solution

The fourth proportional to 18,413.82, 27,620.72 and 4,562.82 is: 6,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.82 : 27,620.72 = 4,562.82 : x
  2. Step 2: Convert to fraction form
    18,413.82/27,620.72 = 4,562.82/x
  3. Step 3: Cross multiply
    18,413.82x = 27,620.72 × 4,562.82
  4. Step 4: Simplify right side
    18,413.82x = 126,028,350.82
  5. Step 5: Solve for x
    x = 126,028,350.82/18,413.82
  6. Step 6: Final answer
    x = 6,844.23

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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.