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Finding the Third Proportional to 4,722 and 11,155

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Solution

The third proportional to 4,722 and 11,155 is: 26,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722 : 11,155 = 11,155 : x
  2. Step 2: Convert to fraction form
    4,722/11,155 = 11,155/x
  3. Step 3: Cross multiply
    4,722x = 11,155 × 11,155
  4. Step 4: Simplify right side
    4,722x = 124,434,025
  5. Step 5: Solve for x
    x = 124,434,025/4,722
  6. Step 6: Final answer
    x = 26,351.97

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.