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Finding the Fourth Proportional to 26,481.94, 39,718.52 and 8,712.82

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Solution

The fourth proportional to 26,481.94, 39,718.52 and 8,712.82 is: 13,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,481.94 : 39,718.52 = 8,712.82 : x
  2. Step 2: Convert to fraction form
    26,481.94/39,718.52 = 8,712.82/x
  3. Step 3: Cross multiply
    26,481.94x = 39,718.52 × 8,712.82
  4. Step 4: Simplify right side
    26,481.94x = 346,060,315.43
  5. Step 5: Solve for x
    x = 346,060,315.43/26,481.94
  6. Step 6: Final answer
    x = 13,067.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.