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Finding the Third Proportional to 20,600 and 33,168

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Solution

The third proportional to 20,600 and 33,168 is: 53,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600 : 33,168 = 33,168 : x
  2. Step 2: Convert to fraction form
    20,600/33,168 = 33,168/x
  3. Step 3: Cross multiply
    20,600x = 33,168 × 33,168
  4. Step 4: Simplify right side
    20,600x = 1,100,116,224
  5. Step 5: Solve for x
    x = 1,100,116,224/20,600
  6. Step 6: Final answer
    x = 53,403.70

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.