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Finding the Third Proportional to 8,541 and 12,993

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Solution

The third proportional to 8,541 and 12,993 is: 19,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541 : 12,993 = 12,993 : x
  2. Step 2: Convert to fraction form
    8,541/12,993 = 12,993/x
  3. Step 3: Cross multiply
    8,541x = 12,993 × 12,993
  4. Step 4: Simplify right side
    8,541x = 168,818,049
  5. Step 5: Solve for x
    x = 168,818,049/8,541
  6. Step 6: Final answer
    x = 19,765.61

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.