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Finding the Third Proportional to 4,918 and 11,521

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Solution

The third proportional to 4,918 and 11,521 is: 26,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918 : 11,521 = 11,521 : x
  2. Step 2: Convert to fraction form
    4,918/11,521 = 11,521/x
  3. Step 3: Cross multiply
    4,918x = 11,521 × 11,521
  4. Step 4: Simplify right side
    4,918x = 132,733,441
  5. Step 5: Solve for x
    x = 132,733,441/4,918
  6. Step 6: Final answer
    x = 26,989.31

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.