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Finding the Third Proportional to 4,885 and 7,652

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Solution

The third proportional to 4,885 and 7,652 is: 11,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885 : 7,652 = 7,652 : x
  2. Step 2: Convert to fraction form
    4,885/7,652 = 7,652/x
  3. Step 3: Cross multiply
    4,885x = 7,652 × 7,652
  4. Step 4: Simplify right side
    4,885x = 58,553,104
  5. Step 5: Solve for x
    x = 58,553,104/4,885
  6. Step 6: Final answer
    x = 11,986.31

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.