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Finding the Third Proportional to 6,647 and 14,118

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Solution

The third proportional to 6,647 and 14,118 is: 29,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647 : 14,118 = 14,118 : x
  2. Step 2: Convert to fraction form
    6,647/14,118 = 14,118/x
  3. Step 3: Cross multiply
    6,647x = 14,118 × 14,118
  4. Step 4: Simplify right side
    6,647x = 199,317,924
  5. Step 5: Solve for x
    x = 199,317,924/6,647
  6. Step 6: Final answer
    x = 29,986.15

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.