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Finding the Third Proportional to 1,908 and 4,610

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Solution

The third proportional to 1,908 and 4,610 is: 11,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908 : 4,610 = 4,610 : x
  2. Step 2: Convert to fraction form
    1,908/4,610 = 4,610/x
  3. Step 3: Cross multiply
    1,908x = 4,610 × 4,610
  4. Step 4: Simplify right side
    1,908x = 21,252,100
  5. Step 5: Solve for x
    x = 21,252,100/1,908
  6. Step 6: Final answer
    x = 11,138.42

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.