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Finding the Third Proportional to 5,679 and 12,213

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Solution

The third proportional to 5,679 and 12,213 is: 26,264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679 : 12,213 = 12,213 : x
  2. Step 2: Convert to fraction form
    5,679/12,213 = 12,213/x
  3. Step 3: Cross multiply
    5,679x = 12,213 × 12,213
  4. Step 4: Simplify right side
    5,679x = 149,157,369
  5. Step 5: Solve for x
    x = 149,157,369/5,679
  6. Step 6: Final answer
    x = 26,264.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.