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Finding the Third Proportional to 2,908 and 4,119

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Solution

The third proportional to 2,908 and 4,119 is: 5,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908 : 4,119 = 4,119 : x
  2. Step 2: Convert to fraction form
    2,908/4,119 = 4,119/x
  3. Step 3: Cross multiply
    2,908x = 4,119 × 4,119
  4. Step 4: Simplify right side
    2,908x = 16,966,161
  5. Step 5: Solve for x
    x = 16,966,161/2,908
  6. Step 6: Final answer
    x = 5,834.31

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.