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Finding the Fourth Proportional to 5,821.90, 8,033.99 and 3,169.31

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Solution

The fourth proportional to 5,821.90, 8,033.99 and 3,169.31 is: 4,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.90 : 8,033.99 = 3,169.31 : x
  2. Step 2: Convert to fraction form
    5,821.90/8,033.99 = 3,169.31/x
  3. Step 3: Cross multiply
    5,821.90x = 8,033.99 × 3,169.31
  4. Step 4: Simplify right side
    5,821.90x = 25,462,148.83
  5. Step 5: Solve for x
    x = 25,462,148.83/5,821.90
  6. Step 6: Final answer
    x = 4,373.51

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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.