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Finding the Third Proportional to 27,975 and 60,690

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Solution

The third proportional to 27,975 and 60,690 is: 131,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,975 : 60,690 = 60,690 : x
  2. Step 2: Convert to fraction form
    27,975/60,690 = 60,690/x
  3. Step 3: Cross multiply
    27,975x = 60,690 × 60,690
  4. Step 4: Simplify right side
    27,975x = 3,683,276,100
  5. Step 5: Solve for x
    x = 3,683,276,100/27,975
  6. Step 6: Final answer
    x = 131,663.13

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.