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Finding the Third Proportional to 2,038 and 3,179

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Solution

The third proportional to 2,038 and 3,179 is: 4,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038 : 3,179 = 3,179 : x
  2. Step 2: Convert to fraction form
    2,038/3,179 = 3,179/x
  3. Step 3: Cross multiply
    2,038x = 3,179 × 3,179
  4. Step 4: Simplify right side
    2,038x = 10,106,041
  5. Step 5: Solve for x
    x = 10,106,041/2,038
  6. Step 6: Final answer
    x = 4,958.80

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.