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Finding the Fourth Proportional to 2,682.16, 4,023.08 and 734.38

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Solution

The fourth proportional to 2,682.16, 4,023.08 and 734.38 is: 1,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.16 : 4,023.08 = 734.38 : x
  2. Step 2: Convert to fraction form
    2,682.16/4,023.08 = 734.38/x
  3. Step 3: Cross multiply
    2,682.16x = 4,023.08 × 734.38
  4. Step 4: Simplify right side
    2,682.16x = 2,954,469.49
  5. Step 5: Solve for x
    x = 2,954,469.49/2,682.16
  6. Step 6: Final answer
    x = 1,101.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.