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Finding the Third Proportional to 620 and 1,592

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Solution

The third proportional to 620 and 1,592 is: 4,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    620 : 1,592 = 1,592 : x
  2. Step 2: Convert to fraction form
    620/1,592 = 1,592/x
  3. Step 3: Cross multiply
    620x = 1,592 × 1,592
  4. Step 4: Simplify right side
    620x = 2,534,464
  5. Step 5: Solve for x
    x = 2,534,464/620
  6. Step 6: Final answer
    x = 4,087.85

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Why These Related Problems?

These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.