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Finding the Fourth Proportional to 3,827.97, 5,744.18 and 1,489.59

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Solution

The fourth proportional to 3,827.97, 5,744.18 and 1,489.59 is: 2,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.97 : 5,744.18 = 1,489.59 : x
  2. Step 2: Convert to fraction form
    3,827.97/5,744.18 = 1,489.59/x
  3. Step 3: Cross multiply
    3,827.97x = 5,744.18 × 1,489.59
  4. Step 4: Simplify right side
    3,827.97x = 8,556,471.22
  5. Step 5: Solve for x
    x = 8,556,471.22/3,827.97
  6. Step 6: Final answer
    x = 2,235.25

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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.