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Finding the Fourth Proportional to 38,974.11, 53,748.41 and 25,540.49

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Solution

The fourth proportional to 38,974.11, 53,748.41 and 25,540.49 is: 35,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,974.11 : 53,748.41 = 25,540.49 : x
  2. Step 2: Convert to fraction form
    38,974.11/53,748.41 = 25,540.49/x
  3. Step 3: Cross multiply
    38,974.11x = 53,748.41 × 25,540.49
  4. Step 4: Simplify right side
    38,974.11x = 1,372,760,331.68
  5. Step 5: Solve for x
    x = 1,372,760,331.68/38,974.11
  6. Step 6: Final answer
    x = 35,222.37

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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.