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Finding the Third Proportional to 27,720 and 60,180

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Solution

The third proportional to 27,720 and 60,180 is: 130,650.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720 : 60,180 = 60,180 : x
  2. Step 2: Convert to fraction form
    27,720/60,180 = 60,180/x
  3. Step 3: Cross multiply
    27,720x = 60,180 × 60,180
  4. Step 4: Simplify right side
    27,720x = 3,621,632,400
  5. Step 5: Solve for x
    x = 3,621,632,400/27,720
  6. Step 6: Final answer
    x = 130,650.52

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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.