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Finding the Fourth Proportional to 11,860.53, 17,791.80 and 3,540.01

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Solution

The fourth proportional to 11,860.53, 17,791.80 and 3,540.01 is: 5,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.53 : 17,791.80 = 3,540.01 : x
  2. Step 2: Convert to fraction form
    11,860.53/17,791.80 = 3,540.01/x
  3. Step 3: Cross multiply
    11,860.53x = 17,791.80 × 3,540.01
  4. Step 4: Simplify right side
    11,860.53x = 62,983,149.92
  5. Step 5: Solve for x
    x = 62,983,149.92/11,860.53
  6. Step 6: Final answer
    x = 5,310.31

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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.