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Finding the Third Proportional to 3,150 and 4,932

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Solution

The third proportional to 3,150 and 4,932 is: 7,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150 : 4,932 = 4,932 : x
  2. Step 2: Convert to fraction form
    3,150/4,932 = 4,932/x
  3. Step 3: Cross multiply
    3,150x = 4,932 × 4,932
  4. Step 4: Simplify right side
    3,150x = 24,324,624
  5. Step 5: Solve for x
    x = 24,324,624/3,150
  6. Step 6: Final answer
    x = 7,722.10

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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.