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Finding the Fourth Proportional to 2,694.21, 3,716.02 and 1,855.18

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Solution

The fourth proportional to 2,694.21, 3,716.02 and 1,855.18 is: 2,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.21 : 3,716.02 = 1,855.18 : x
  2. Step 2: Convert to fraction form
    2,694.21/3,716.02 = 1,855.18/x
  3. Step 3: Cross multiply
    2,694.21x = 3,716.02 × 1,855.18
  4. Step 4: Simplify right side
    2,694.21x = 6,893,888.55
  5. Step 5: Solve for x
    x = 6,893,888.55/2,694.21
  6. Step 6: Final answer
    x = 2,558.78

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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.