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Finding the Third Proportional to 7,118 and 9,641

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Solution

The third proportional to 7,118 and 9,641 is: 13,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118 : 9,641 = 9,641 : x
  2. Step 2: Convert to fraction form
    7,118/9,641 = 9,641/x
  3. Step 3: Cross multiply
    7,118x = 9,641 × 9,641
  4. Step 4: Simplify right side
    7,118x = 92,948,881
  5. Step 5: Solve for x
    x = 92,948,881/7,118
  6. Step 6: Final answer
    x = 13,058.29

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.