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Finding the Third Proportional to 4,202 and 9,229

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Solution

The third proportional to 4,202 and 9,229 is: 20,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,202 : 9,229 = 9,229 : x
  2. Step 2: Convert to fraction form
    4,202/9,229 = 9,229/x
  3. Step 3: Cross multiply
    4,202x = 9,229 × 9,229
  4. Step 4: Simplify right side
    4,202x = 85,174,441
  5. Step 5: Solve for x
    x = 85,174,441/4,202
  6. Step 6: Final answer
    x = 20,269.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.