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Finding the Fourth Proportional to 2,640.56, 3,643.82 and 1,461.56

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Solution

The fourth proportional to 2,640.56, 3,643.82 and 1,461.56 is: 2,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.56 : 3,643.82 = 1,461.56 : x
  2. Step 2: Convert to fraction form
    2,640.56/3,643.82 = 1,461.56/x
  3. Step 3: Cross multiply
    2,640.56x = 3,643.82 × 1,461.56
  4. Step 4: Simplify right side
    2,640.56x = 5,325,636.03
  5. Step 5: Solve for x
    x = 5,325,636.03/2,640.56
  6. Step 6: Final answer
    x = 2,016.86

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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.