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Finding the Third Proportional to 11,922.75 and 22,761

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Solution

The third proportional to 11,922.75 and 22,761 is: 43,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.75 : 22,761 = 22,761 : x
  2. Step 2: Convert to fraction form
    11,922.75/22,761 = 22,761/x
  3. Step 3: Cross multiply
    11,922.75x = 22,761 × 22,761
  4. Step 4: Simplify right side
    11,922.75x = 518,063,121
  5. Step 5: Solve for x
    x = 518,063,121/11,922.75
  6. Step 6: Final answer
    x = 43,451.65

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.