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Finding the Fourth Proportional to 2,760, 3,808.82 and 1,518

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Solution

The fourth proportional to 2,760, 3,808.82 and 1,518 is: 2,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760 : 3,808.82 = 1,518 : x
  2. Step 2: Convert to fraction form
    2,760/3,808.82 = 1,518/x
  3. Step 3: Cross multiply
    2,760x = 3,808.82 × 1,518
  4. Step 4: Simplify right side
    2,760x = 5,781,788.76
  5. Step 5: Solve for x
    x = 5,781,788.76/2,760
  6. Step 6: Final answer
    x = 2,094.85

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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.