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Finding the Fourth Proportional to 17,274.45, 23,837.79 and 9,721.11

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Solution

The fourth proportional to 17,274.45, 23,837.79 and 9,721.11 is: 13,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,274.45 : 23,837.79 = 9,721.11 : x
  2. Step 2: Convert to fraction form
    17,274.45/23,837.79 = 9,721.11/x
  3. Step 3: Cross multiply
    17,274.45x = 23,837.79 × 9,721.11
  4. Step 4: Simplify right side
    17,274.45x = 231,729,778.75
  5. Step 5: Solve for x
    x = 231,729,778.75/17,274.45
  6. Step 6: Final answer
    x = 13,414.60

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Why These Related Problems?

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