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Finding the Third Proportional to 13,634 and 20,571

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Solution

The third proportional to 13,634 and 20,571 is: 31,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634 : 20,571 = 20,571 : x
  2. Step 2: Convert to fraction form
    13,634/20,571 = 20,571/x
  3. Step 3: Cross multiply
    13,634x = 20,571 × 20,571
  4. Step 4: Simplify right side
    13,634x = 423,166,041
  5. Step 5: Solve for x
    x = 423,166,041/13,634
  6. Step 6: Final answer
    x = 31,037.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.