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Finding the Fourth Proportional to 11,361.14, 17,043.99 and 3,963.61

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Solution

The fourth proportional to 11,361.14, 17,043.99 and 3,963.61 is: 5,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.14 : 17,043.99 = 3,963.61 : x
  2. Step 2: Convert to fraction form
    11,361.14/17,043.99 = 3,963.61/x
  3. Step 3: Cross multiply
    11,361.14x = 17,043.99 × 3,963.61
  4. Step 4: Simplify right side
    11,361.14x = 67,555,729.20
  5. Step 5: Solve for x
    x = 67,555,729.20/11,361.14
  6. Step 6: Final answer
    x = 5,946.21

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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.