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Finding the Third Proportional to 1,882 and 4,420

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Solution

The third proportional to 1,882 and 4,420 is: 10,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882 : 4,420 = 4,420 : x
  2. Step 2: Convert to fraction form
    1,882/4,420 = 4,420/x
  3. Step 3: Cross multiply
    1,882x = 4,420 × 4,420
  4. Step 4: Simplify right side
    1,882x = 19,536,400
  5. Step 5: Solve for x
    x = 19,536,400/1,882
  6. Step 6: Final answer
    x = 10,380.66

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.