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Finding the Third Proportional to 938.06 and 2,031.38

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Solution

The third proportional to 938.06 and 2,031.38 is: 4,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.06 : 2,031.38 = 2,031.38 : x
  2. Step 2: Convert to fraction form
    938.06/2,031.38 = 2,031.38/x
  3. Step 3: Cross multiply
    938.06x = 2,031.38 × 2,031.38
  4. Step 4: Simplify right side
    938.06x = 4,126,484.39
  5. Step 5: Solve for x
    x = 4,126,484.39/938.06
  6. Step 6: Final answer
    x = 4,398.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.