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Finding the Third Proportional to 61,443 and 92,728

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Solution

The third proportional to 61,443 and 92,728 is: 139,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,443 : 92,728 = 92,728 : x
  2. Step 2: Convert to fraction form
    61,443/92,728 = 92,728/x
  3. Step 3: Cross multiply
    61,443x = 92,728 × 92,728
  4. Step 4: Simplify right side
    61,443x = 8,598,481,984
  5. Step 5: Solve for x
    x = 8,598,481,984/61,443
  6. Step 6: Final answer
    x = 139,942.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.