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Finding the Third Proportional to 43,824 and 68,656

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Solution

The third proportional to 43,824 and 68,656 is: 107,558.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,824 : 68,656 = 68,656 : x
  2. Step 2: Convert to fraction form
    43,824/68,656 = 68,656/x
  3. Step 3: Cross multiply
    43,824x = 68,656 × 68,656
  4. Step 4: Simplify right side
    43,824x = 4,713,646,336
  5. Step 5: Solve for x
    x = 4,713,646,336/43,824
  6. Step 6: Final answer
    x = 107,558.56

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.