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Finding the Fourth Proportional to 27,058.31, 37,340.35 and 15,121.64

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Solution

The fourth proportional to 27,058.31, 37,340.35 and 15,121.64 is: 20,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,058.31 : 37,340.35 = 15,121.64 : x
  2. Step 2: Convert to fraction form
    27,058.31/37,340.35 = 15,121.64/x
  3. Step 3: Cross multiply
    27,058.31x = 37,340.35 × 15,121.64
  4. Step 4: Simplify right side
    27,058.31x = 564,647,245.69
  5. Step 5: Solve for x
    x = 564,647,245.69/27,058.31
  6. Step 6: Final answer
    x = 20,867.80

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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.