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Finding the Third Proportional to 2,907 and 6,331

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Solution

The third proportional to 2,907 and 6,331 is: 13,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907 : 6,331 = 6,331 : x
  2. Step 2: Convert to fraction form
    2,907/6,331 = 6,331/x
  3. Step 3: Cross multiply
    2,907x = 6,331 × 6,331
  4. Step 4: Simplify right side
    2,907x = 40,081,561
  5. Step 5: Solve for x
    x = 40,081,561/2,907
  6. Step 6: Final answer
    x = 13,787.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.