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Finding the Third Proportional to 14,001 and 21,679

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Solution

The third proportional to 14,001 and 21,679 is: 33,567.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001 : 21,679 = 21,679 : x
  2. Step 2: Convert to fraction form
    14,001/21,679 = 21,679/x
  3. Step 3: Cross multiply
    14,001x = 21,679 × 21,679
  4. Step 4: Simplify right side
    14,001x = 469,979,041
  5. Step 5: Solve for x
    x = 469,979,041/14,001
  6. Step 6: Final answer
    x = 33,567.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.