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Finding the Fourth Proportional to 4,491.82, 6,738.81 and 1,413.82

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Solution

The fourth proportional to 4,491.82, 6,738.81 and 1,413.82 is: 2,121.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491.82 : 6,738.81 = 1,413.82 : x
  2. Step 2: Convert to fraction form
    4,491.82/6,738.81 = 1,413.82/x
  3. Step 3: Cross multiply
    4,491.82x = 6,738.81 × 1,413.82
  4. Step 4: Simplify right side
    4,491.82x = 9,527,464.35
  5. Step 5: Solve for x
    x = 9,527,464.35/4,491.82
  6. Step 6: Final answer
    x = 2,121.07

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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.