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Finding the Third Proportional to 2,021 and 2,925

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Solution

The third proportional to 2,021 and 2,925 is: 4,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021 : 2,925 = 2,925 : x
  2. Step 2: Convert to fraction form
    2,021/2,925 = 2,925/x
  3. Step 3: Cross multiply
    2,021x = 2,925 × 2,925
  4. Step 4: Simplify right side
    2,021x = 8,555,625
  5. Step 5: Solve for x
    x = 8,555,625/2,021
  6. Step 6: Final answer
    x = 4,233.36

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.