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Finding the Third Proportional to 1,814 and 3,968

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Solution

The third proportional to 1,814 and 3,968 is: 8,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814 : 3,968 = 3,968 : x
  2. Step 2: Convert to fraction form
    1,814/3,968 = 3,968/x
  3. Step 3: Cross multiply
    1,814x = 3,968 × 3,968
  4. Step 4: Simplify right side
    1,814x = 15,745,024
  5. Step 5: Solve for x
    x = 15,745,024/1,814
  6. Step 6: Final answer
    x = 8,679.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.