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Finding the Third Proportional to 12,395 and 27,243

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Solution

The third proportional to 12,395 and 27,243 is: 59,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395 : 27,243 = 27,243 : x
  2. Step 2: Convert to fraction form
    12,395/27,243 = 27,243/x
  3. Step 3: Cross multiply
    12,395x = 27,243 × 27,243
  4. Step 4: Simplify right side
    12,395x = 742,181,049
  5. Step 5: Solve for x
    x = 742,181,049/12,395
  6. Step 6: Final answer
    x = 59,877.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.