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Finding the Fourth Proportional to 3,909.03, 5,871.71 and 3,323.94

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Solution

The fourth proportional to 3,909.03, 5,871.71 and 3,323.94 is: 4,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.03 : 5,871.71 = 3,323.94 : x
  2. Step 2: Convert to fraction form
    3,909.03/5,871.71 = 3,323.94/x
  3. Step 3: Cross multiply
    3,909.03x = 5,871.71 × 3,323.94
  4. Step 4: Simplify right side
    3,909.03x = 19,517,211.74
  5. Step 5: Solve for x
    x = 19,517,211.74/3,909.03
  6. Step 6: Final answer
    x = 4,992.85

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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.