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Finding the Third Proportional to 7,789 and 9,463

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Solution

The third proportional to 7,789 and 9,463 is: 11,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789 : 9,463 = 9,463 : x
  2. Step 2: Convert to fraction form
    7,789/9,463 = 9,463/x
  3. Step 3: Cross multiply
    7,789x = 9,463 × 9,463
  4. Step 4: Simplify right side
    7,789x = 89,548,369
  5. Step 5: Solve for x
    x = 89,548,369/7,789
  6. Step 6: Final answer
    x = 11,496.77

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.