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Finding the Third Proportional to 1,384 and 1,948

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Solution

The third proportional to 1,384 and 1,948 is: 2,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384 : 1,948 = 1,948 : x
  2. Step 2: Convert to fraction form
    1,384/1,948 = 1,948/x
  3. Step 3: Cross multiply
    1,384x = 1,948 × 1,948
  4. Step 4: Simplify right side
    1,384x = 3,794,704
  5. Step 5: Solve for x
    x = 3,794,704/1,384
  6. Step 6: Final answer
    x = 2,741.84

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.