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Finding the Third Proportional to 27,188 and 40,278

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Solution

The third proportional to 27,188 and 40,278 is: 59,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,188 : 40,278 = 40,278 : x
  2. Step 2: Convert to fraction form
    27,188/40,278 = 40,278/x
  3. Step 3: Cross multiply
    27,188x = 40,278 × 40,278
  4. Step 4: Simplify right side
    27,188x = 1,622,317,284
  5. Step 5: Solve for x
    x = 1,622,317,284/27,188
  6. Step 6: Final answer
    x = 59,670.34

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.