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Finding the Third Proportional to 2,814 and 3,679

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Solution

The third proportional to 2,814 and 3,679 is: 4,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814 : 3,679 = 3,679 : x
  2. Step 2: Convert to fraction form
    2,814/3,679 = 3,679/x
  3. Step 3: Cross multiply
    2,814x = 3,679 × 3,679
  4. Step 4: Simplify right side
    2,814x = 13,535,041
  5. Step 5: Solve for x
    x = 13,535,041/2,814
  6. Step 6: Final answer
    x = 4,809.89

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.