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Finding the Third Proportional to 4,821 and 7,383

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Solution

The third proportional to 4,821 and 7,383 is: 11,306.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821 : 7,383 = 7,383 : x
  2. Step 2: Convert to fraction form
    4,821/7,383 = 7,383/x
  3. Step 3: Cross multiply
    4,821x = 7,383 × 7,383
  4. Step 4: Simplify right side
    4,821x = 54,508,689
  5. Step 5: Solve for x
    x = 54,508,689/4,821
  6. Step 6: Final answer
    x = 11,306.51

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.