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Finding the Third Proportional to 1,956 and 4,291

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Solution

The third proportional to 1,956 and 4,291 is: 9,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956 : 4,291 = 4,291 : x
  2. Step 2: Convert to fraction form
    1,956/4,291 = 4,291/x
  3. Step 3: Cross multiply
    1,956x = 4,291 × 4,291
  4. Step 4: Simplify right side
    1,956x = 18,412,681
  5. Step 5: Solve for x
    x = 18,412,681/1,956
  6. Step 6: Final answer
    x = 9,413.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.