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Finding the Third Proportional to 6,331 and 9,118

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Solution

The third proportional to 6,331 and 9,118 is: 13,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331 : 9,118 = 9,118 : x
  2. Step 2: Convert to fraction form
    6,331/9,118 = 9,118/x
  3. Step 3: Cross multiply
    6,331x = 9,118 × 9,118
  4. Step 4: Simplify right side
    6,331x = 83,137,924
  5. Step 5: Solve for x
    x = 83,137,924/6,331
  6. Step 6: Final answer
    x = 13,131.88

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.