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Finding the Third Proportional to 2,902 and 4,421

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Solution

The third proportional to 2,902 and 4,421 is: 6,735.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902 : 4,421 = 4,421 : x
  2. Step 2: Convert to fraction form
    2,902/4,421 = 4,421/x
  3. Step 3: Cross multiply
    2,902x = 4,421 × 4,421
  4. Step 4: Simplify right side
    2,902x = 19,545,241
  5. Step 5: Solve for x
    x = 19,545,241/2,902
  6. Step 6: Final answer
    x = 6,735.09

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.