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Finding the Third Proportional to 5,114 and 7,822

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Solution

The third proportional to 5,114 and 7,822 is: 11,963.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114 : 7,822 = 7,822 : x
  2. Step 2: Convert to fraction form
    5,114/7,822 = 7,822/x
  3. Step 3: Cross multiply
    5,114x = 7,822 × 7,822
  4. Step 4: Simplify right side
    5,114x = 61,183,684
  5. Step 5: Solve for x
    x = 61,183,684/5,114
  6. Step 6: Final answer
    x = 11,963.96

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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.