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Finding the Third Proportional to 16,635 and 20,199

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Solution

The third proportional to 16,635 and 20,199 is: 24,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,635 : 20,199 = 20,199 : x
  2. Step 2: Convert to fraction form
    16,635/20,199 = 20,199/x
  3. Step 3: Cross multiply
    16,635x = 20,199 × 20,199
  4. Step 4: Simplify right side
    16,635x = 407,999,601
  5. Step 5: Solve for x
    x = 407,999,601/16,635
  6. Step 6: Final answer
    x = 24,526.58

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.