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Finding the Third Proportional to 4,601 and 6,890

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Solution

The third proportional to 4,601 and 6,890 is: 10,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,601 : 6,890 = 6,890 : x
  2. Step 2: Convert to fraction form
    4,601/6,890 = 6,890/x
  3. Step 3: Cross multiply
    4,601x = 6,890 × 6,890
  4. Step 4: Simplify right side
    4,601x = 47,472,100
  5. Step 5: Solve for x
    x = 47,472,100/4,601
  6. Step 6: Final answer
    x = 10,317.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.