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Finding the Third Proportional to 27,440 and 43,636

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Solution

The third proportional to 27,440 and 43,636 is: 69,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,440 : 43,636 = 43,636 : x
  2. Step 2: Convert to fraction form
    27,440/43,636 = 43,636/x
  3. Step 3: Cross multiply
    27,440x = 43,636 × 43,636
  4. Step 4: Simplify right side
    27,440x = 1,904,100,496
  5. Step 5: Solve for x
    x = 1,904,100,496/27,440
  6. Step 6: Final answer
    x = 69,391.42

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.