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Finding the Third Proportional to 7,889 and 16,993

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Solution

The third proportional to 7,889 and 16,993 is: 36,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889 : 16,993 = 16,993 : x
  2. Step 2: Convert to fraction form
    7,889/16,993 = 16,993/x
  3. Step 3: Cross multiply
    7,889x = 16,993 × 16,993
  4. Step 4: Simplify right side
    7,889x = 288,762,049
  5. Step 5: Solve for x
    x = 288,762,049/7,889
  6. Step 6: Final answer
    x = 36,603.12

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.