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Finding the Fourth Proportional to 3,379.91, 4,667.48 and 3,195.84

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Solution

The fourth proportional to 3,379.91, 4,667.48 and 3,195.84 is: 4,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.91 : 4,667.48 = 3,195.84 : x
  2. Step 2: Convert to fraction form
    3,379.91/4,667.48 = 3,195.84/x
  3. Step 3: Cross multiply
    3,379.91x = 4,667.48 × 3,195.84
  4. Step 4: Simplify right side
    3,379.91x = 14,916,495.95
  5. Step 5: Solve for x
    x = 14,916,495.95/3,379.91
  6. Step 6: Final answer
    x = 4,413.28

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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.