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Finding the Third Proportional to 4,821 and 8,013

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Solution

The third proportional to 4,821 and 8,013 is: 13,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821 : 8,013 = 8,013 : x
  2. Step 2: Convert to fraction form
    4,821/8,013 = 8,013/x
  3. Step 3: Cross multiply
    4,821x = 8,013 × 8,013
  4. Step 4: Simplify right side
    4,821x = 64,208,169
  5. Step 5: Solve for x
    x = 64,208,169/4,821
  6. Step 6: Final answer
    x = 13,318.43

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.