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Finding the Third Proportional to 4,971 and 11,121

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Solution

The third proportional to 4,971 and 11,121 is: 24,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971 : 11,121 = 11,121 : x
  2. Step 2: Convert to fraction form
    4,971/11,121 = 11,121/x
  3. Step 3: Cross multiply
    4,971x = 11,121 × 11,121
  4. Step 4: Simplify right side
    4,971x = 123,676,641
  5. Step 5: Solve for x
    x = 123,676,641/4,971
  6. Step 6: Final answer
    x = 24,879.63

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.