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Finding the Third Proportional to 2,225 and 4,222

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Solution

The third proportional to 2,225 and 4,222 is: 8,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225 : 4,222 = 4,222 : x
  2. Step 2: Convert to fraction form
    2,225/4,222 = 4,222/x
  3. Step 3: Cross multiply
    2,225x = 4,222 × 4,222
  4. Step 4: Simplify right side
    2,225x = 17,825,284
  5. Step 5: Solve for x
    x = 17,825,284/2,225
  6. Step 6: Final answer
    x = 8,011.36

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.