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Finding the Third Proportional to 33,206.63 and 71,661

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Solution

The third proportional to 33,206.63 and 71,661 is: 154,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,206.63 : 71,661 = 71,661 : x
  2. Step 2: Convert to fraction form
    33,206.63/71,661 = 71,661/x
  3. Step 3: Cross multiply
    33,206.63x = 71,661 × 71,661
  4. Step 4: Simplify right side
    33,206.63x = 5,135,298,921
  5. Step 5: Solve for x
    x = 5,135,298,921/33,206.63
  6. Step 6: Final answer
    x = 154,646.82

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.