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Finding the Third Proportional to 2,926 and 4,421

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Solution

The third proportional to 2,926 and 4,421 is: 6,679.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926 : 4,421 = 4,421 : x
  2. Step 2: Convert to fraction form
    2,926/4,421 = 4,421/x
  3. Step 3: Cross multiply
    2,926x = 4,421 × 4,421
  4. Step 4: Simplify right side
    2,926x = 19,545,241
  5. Step 5: Solve for x
    x = 19,545,241/2,926
  6. Step 6: Final answer
    x = 6,679.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.