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Finding the Fourth Proportional to 2,742.82, 3,785.31 and 1,563.62

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Solution

The fourth proportional to 2,742.82, 3,785.31 and 1,563.62 is: 2,157.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.82 : 3,785.31 = 1,563.62 : x
  2. Step 2: Convert to fraction form
    2,742.82/3,785.31 = 1,563.62/x
  3. Step 3: Cross multiply
    2,742.82x = 3,785.31 × 1,563.62
  4. Step 4: Simplify right side
    2,742.82x = 5,918,786.42
  5. Step 5: Solve for x
    x = 5,918,786.42/2,742.82
  6. Step 6: Final answer
    x = 2,157.92

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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.