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Finding the Third Proportional to 4,228 and 10,858

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Solution

The third proportional to 4,228 and 10,858 is: 27,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,228 : 10,858 = 10,858 : x
  2. Step 2: Convert to fraction form
    4,228/10,858 = 10,858/x
  3. Step 3: Cross multiply
    4,228x = 10,858 × 10,858
  4. Step 4: Simplify right side
    4,228x = 117,896,164
  5. Step 5: Solve for x
    x = 117,896,164/4,228
  6. Step 6: Final answer
    x = 27,884.62

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Why These Related Problems?

These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.