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Finding the Third Proportional to 12,222.75 and 18,361.13

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Solution

The third proportional to 12,222.75 and 18,361.13 is: 27,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.75 : 18,361.13 = 18,361.13 : x
  2. Step 2: Convert to fraction form
    12,222.75/18,361.13 = 18,361.13/x
  3. Step 3: Cross multiply
    12,222.75x = 18,361.13 × 18,361.13
  4. Step 4: Simplify right side
    12,222.75x = 337,130,911.27
  5. Step 5: Solve for x
    x = 337,130,911.27/12,222.75
  6. Step 6: Final answer
    x = 27,582.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.