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Finding the Third Proportional to 1,691 and 2,573

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Solution

The third proportional to 1,691 and 2,573 is: 3,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691 : 2,573 = 2,573 : x
  2. Step 2: Convert to fraction form
    1,691/2,573 = 2,573/x
  3. Step 3: Cross multiply
    1,691x = 2,573 × 2,573
  4. Step 4: Simplify right side
    1,691x = 6,620,329
  5. Step 5: Solve for x
    x = 6,620,329/1,691
  6. Step 6: Final answer
    x = 3,915.04

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.