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Finding the Third Proportional to 4,836 and 7,422

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Solution

The third proportional to 4,836 and 7,422 is: 11,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836 : 7,422 = 7,422 : x
  2. Step 2: Convert to fraction form
    4,836/7,422 = 7,422/x
  3. Step 3: Cross multiply
    4,836x = 7,422 × 7,422
  4. Step 4: Simplify right side
    4,836x = 55,086,084
  5. Step 5: Solve for x
    x = 55,086,084/4,836
  6. Step 6: Final answer
    x = 11,390.84

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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.