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Finding the Third Proportional to 38,969 and 85,229

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Solution

The third proportional to 38,969 and 85,229 is: 186,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969 : 85,229 = 85,229 : x
  2. Step 2: Convert to fraction form
    38,969/85,229 = 85,229/x
  3. Step 3: Cross multiply
    38,969x = 85,229 × 85,229
  4. Step 4: Simplify right side
    38,969x = 7,263,982,441
  5. Step 5: Solve for x
    x = 7,263,982,441/38,969
  6. Step 6: Final answer
    x = 186,404.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.