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Finding the Third Proportional to 13,158 and 27,243

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Solution

The third proportional to 13,158 and 27,243 is: 56,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158 : 27,243 = 27,243 : x
  2. Step 2: Convert to fraction form
    13,158/27,243 = 27,243/x
  3. Step 3: Cross multiply
    13,158x = 27,243 × 27,243
  4. Step 4: Simplify right side
    13,158x = 742,181,049
  5. Step 5: Solve for x
    x = 742,181,049/13,158
  6. Step 6: Final answer
    x = 56,405.31

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.