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Finding the Third Proportional to 39,368 and 83,992

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Solution

The third proportional to 39,368 and 83,992 is: 179,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,368 : 83,992 = 83,992 : x
  2. Step 2: Convert to fraction form
    39,368/83,992 = 83,992/x
  3. Step 3: Cross multiply
    39,368x = 83,992 × 83,992
  4. Step 4: Simplify right side
    39,368x = 7,054,656,064
  5. Step 5: Solve for x
    x = 7,054,656,064/39,368
  6. Step 6: Final answer
    x = 179,197.73

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.