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Finding the Third Proportional to 7,634 and 12,261

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Solution

The third proportional to 7,634 and 12,261 is: 19,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634 : 12,261 = 12,261 : x
  2. Step 2: Convert to fraction form
    7,634/12,261 = 12,261/x
  3. Step 3: Cross multiply
    7,634x = 12,261 × 12,261
  4. Step 4: Simplify right side
    7,634x = 150,332,121
  5. Step 5: Solve for x
    x = 150,332,121/7,634
  6. Step 6: Final answer
    x = 19,692.44

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.