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Finding the Third Proportional to 16,821 and 36,055.97

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Solution

The third proportional to 16,821 and 36,055.97 is: 77,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821 : 36,055.97 = 36,055.97 : x
  2. Step 2: Convert to fraction form
    16,821/36,055.97 = 36,055.97/x
  3. Step 3: Cross multiply
    16,821x = 36,055.97 × 36,055.97
  4. Step 4: Simplify right side
    16,821x = 1,300,032,882.50
  5. Step 5: Solve for x
    x = 1,300,032,882.50/16,821
  6. Step 6: Final answer
    x = 77,286.30

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.