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Finding the Fourth Proportional to 15,992.78, 22,062.90 and 9,274.52

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Solution

The fourth proportional to 15,992.78, 22,062.90 and 9,274.52 is: 12,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992.78 : 22,062.90 = 9,274.52 : x
  2. Step 2: Convert to fraction form
    15,992.78/22,062.90 = 9,274.52/x
  3. Step 3: Cross multiply
    15,992.78x = 22,062.90 × 9,274.52
  4. Step 4: Simplify right side
    15,992.78x = 204,622,760.10
  5. Step 5: Solve for x
    x = 204,622,760.10/15,992.78
  6. Step 6: Final answer
    x = 12,794.70

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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.