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Finding the Fourth Proportional to 17,791.11, 26,687.88 and 6,112.53

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Solution

The fourth proportional to 17,791.11, 26,687.88 and 6,112.53 is: 9,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.11 : 26,687.88 = 6,112.53 : x
  2. Step 2: Convert to fraction form
    17,791.11/26,687.88 = 6,112.53/x
  3. Step 3: Cross multiply
    17,791.11x = 26,687.88 × 6,112.53
  4. Step 4: Simplify right side
    17,791.11x = 163,130,467.14
  5. Step 5: Solve for x
    x = 163,130,467.14/17,791.11
  6. Step 6: Final answer
    x = 9,169.21

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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.