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Finding the Third Proportional to 1,926 and 3,291

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Solution

The third proportional to 1,926 and 3,291 is: 5,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926 : 3,291 = 3,291 : x
  2. Step 2: Convert to fraction form
    1,926/3,291 = 3,291/x
  3. Step 3: Cross multiply
    1,926x = 3,291 × 3,291
  4. Step 4: Simplify right side
    1,926x = 10,830,681
  5. Step 5: Solve for x
    x = 10,830,681/1,926
  6. Step 6: Final answer
    x = 5,623.41

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.