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Finding the Third Proportional to 18,334.50 and 27,855

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Solution

The third proportional to 18,334.50 and 27,855 is: 42,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,334.50 : 27,855 = 27,855 : x
  2. Step 2: Convert to fraction form
    18,334.50/27,855 = 27,855/x
  3. Step 3: Cross multiply
    18,334.50x = 27,855 × 27,855
  4. Step 4: Simplify right side
    18,334.50x = 775,901,025
  5. Step 5: Solve for x
    x = 775,901,025/18,334.50
  6. Step 6: Final answer
    x = 42,319.18

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.