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Finding the Third Proportional to 12,740 and 27,613

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Solution

The third proportional to 12,740 and 27,613 is: 59,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740 : 27,613 = 27,613 : x
  2. Step 2: Convert to fraction form
    12,740/27,613 = 27,613/x
  3. Step 3: Cross multiply
    12,740x = 27,613 × 27,613
  4. Step 4: Simplify right side
    12,740x = 762,477,769
  5. Step 5: Solve for x
    x = 762,477,769/12,740
  6. Step 6: Final answer
    x = 59,849.12

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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.