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Finding the Fourth Proportional to 11,243.97, 15,522.89 and 6,768.82

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Solution

The fourth proportional to 11,243.97, 15,522.89 and 6,768.82 is: 9,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.97 : 15,522.89 = 6,768.82 : x
  2. Step 2: Convert to fraction form
    11,243.97/15,522.89 = 6,768.82/x
  3. Step 3: Cross multiply
    11,243.97x = 15,522.89 × 6,768.82
  4. Step 4: Simplify right side
    11,243.97x = 105,071,648.29
  5. Step 5: Solve for x
    x = 105,071,648.29/11,243.97
  6. Step 6: Final answer
    x = 9,344.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.