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Finding the Fourth Proportional to 2,745.75, 3,789.15 and 1,486.82

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Solution

The fourth proportional to 2,745.75, 3,789.15 and 1,486.82 is: 2,051.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.75 : 3,789.15 = 1,486.82 : x
  2. Step 2: Convert to fraction form
    2,745.75/3,789.15 = 1,486.82/x
  3. Step 3: Cross multiply
    2,745.75x = 3,789.15 × 1,486.82
  4. Step 4: Simplify right side
    2,745.75x = 5,633,767.77
  5. Step 5: Solve for x
    x = 5,633,767.77/2,745.75
  6. Step 6: Final answer
    x = 2,051.81

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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.