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Finding the Third Proportional to 8,742 and 11,433

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Solution

The third proportional to 8,742 and 11,433 is: 14,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742 : 11,433 = 11,433 : x
  2. Step 2: Convert to fraction form
    8,742/11,433 = 11,433/x
  3. Step 3: Cross multiply
    8,742x = 11,433 × 11,433
  4. Step 4: Simplify right side
    8,742x = 130,713,489
  5. Step 5: Solve for x
    x = 130,713,489/8,742
  6. Step 6: Final answer
    x = 14,952.36

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.