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Finding the Third Proportional to 4,956 and 12,021

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Solution

The third proportional to 4,956 and 12,021 is: 29,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,956 : 12,021 = 12,021 : x
  2. Step 2: Convert to fraction form
    4,956/12,021 = 12,021/x
  3. Step 3: Cross multiply
    4,956x = 12,021 × 12,021
  4. Step 4: Simplify right side
    4,956x = 144,504,441
  5. Step 5: Solve for x
    x = 144,504,441/4,956
  6. Step 6: Final answer
    x = 29,157.47

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.