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Finding the Third Proportional to 4,720 and 11,180

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Solution

The third proportional to 4,720 and 11,180 is: 26,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720 : 11,180 = 11,180 : x
  2. Step 2: Convert to fraction form
    4,720/11,180 = 11,180/x
  3. Step 3: Cross multiply
    4,720x = 11,180 × 11,180
  4. Step 4: Simplify right side
    4,720x = 124,992,400
  5. Step 5: Solve for x
    x = 124,992,400/4,720
  6. Step 6: Final answer
    x = 26,481.44

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.