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Finding the Third Proportional to 17,728 and 39,546

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Solution

The third proportional to 17,728 and 39,546 is: 88,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,728 : 39,546 = 39,546 : x
  2. Step 2: Convert to fraction form
    17,728/39,546 = 39,546/x
  3. Step 3: Cross multiply
    17,728x = 39,546 × 39,546
  4. Step 4: Simplify right side
    17,728x = 1,563,886,116
  5. Step 5: Solve for x
    x = 1,563,886,116/17,728
  6. Step 6: Final answer
    x = 88,215.60

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.