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Finding the Third Proportional to 1,921 and 3,063

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Solution

The third proportional to 1,921 and 3,063 is: 4,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921 : 3,063 = 3,063 : x
  2. Step 2: Convert to fraction form
    1,921/3,063 = 3,063/x
  3. Step 3: Cross multiply
    1,921x = 3,063 × 3,063
  4. Step 4: Simplify right side
    1,921x = 9,381,969
  5. Step 5: Solve for x
    x = 9,381,969/1,921
  6. Step 6: Final answer
    x = 4,883.90

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.