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Finding the Third Proportional to 17,603 and 27,485

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Solution

The third proportional to 17,603 and 27,485 is: 42,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603 : 27,485 = 27,485 : x
  2. Step 2: Convert to fraction form
    17,603/27,485 = 27,485/x
  3. Step 3: Cross multiply
    17,603x = 27,485 × 27,485
  4. Step 4: Simplify right side
    17,603x = 755,425,225
  5. Step 5: Solve for x
    x = 755,425,225/17,603
  6. Step 6: Final answer
    x = 42,914.57

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.