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Finding the Third Proportional to 8,001 and 21,075

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Solution

The third proportional to 8,001 and 21,075 is: 55,512.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001 : 21,075 = 21,075 : x
  2. Step 2: Convert to fraction form
    8,001/21,075 = 21,075/x
  3. Step 3: Cross multiply
    8,001x = 21,075 × 21,075
  4. Step 4: Simplify right side
    8,001x = 444,155,625
  5. Step 5: Solve for x
    x = 444,155,625/8,001
  6. Step 6: Final answer
    x = 55,512.51

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.