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Finding the Third Proportional to 625 and 1,353

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Solution

The third proportional to 625 and 1,353 is: 2,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    625 : 1,353 = 1,353 : x
  2. Step 2: Convert to fraction form
    625/1,353 = 1,353/x
  3. Step 3: Cross multiply
    625x = 1,353 × 1,353
  4. Step 4: Simplify right side
    625x = 1,830,609
  5. Step 5: Solve for x
    x = 1,830,609/625
  6. Step 6: Final answer
    x = 2,928.97

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.