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Finding the Third Proportional to 12,515.50 and 27,218

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Solution

The third proportional to 12,515.50 and 27,218 is: 59,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.50 : 27,218 = 27,218 : x
  2. Step 2: Convert to fraction form
    12,515.50/27,218 = 27,218/x
  3. Step 3: Cross multiply
    12,515.50x = 27,218 × 27,218
  4. Step 4: Simplify right side
    12,515.50x = 740,819,524
  5. Step 5: Solve for x
    x = 740,819,524/12,515.50
  6. Step 6: Final answer
    x = 59,192.16

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.