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Finding the Third Proportional to 17,652 and 27,390

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Solution

The third proportional to 17,652 and 27,390 is: 42,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,652 : 27,390 = 27,390 : x
  2. Step 2: Convert to fraction form
    17,652/27,390 = 27,390/x
  3. Step 3: Cross multiply
    17,652x = 27,390 × 27,390
  4. Step 4: Simplify right side
    17,652x = 750,212,100
  5. Step 5: Solve for x
    x = 750,212,100/17,652
  6. Step 6: Final answer
    x = 42,500.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.