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Finding the Third Proportional to 7,614 and 11,783

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Solution

The third proportional to 7,614 and 11,783 is: 18,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614 : 11,783 = 11,783 : x
  2. Step 2: Convert to fraction form
    7,614/11,783 = 11,783/x
  3. Step 3: Cross multiply
    7,614x = 11,783 × 11,783
  4. Step 4: Simplify right side
    7,614x = 138,839,089
  5. Step 5: Solve for x
    x = 138,839,089/7,614
  6. Step 6: Final answer
    x = 18,234.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.