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Finding the Third Proportional to 17,931 and 36,654

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Solution

The third proportional to 17,931 and 36,654 is: 74,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931 : 36,654 = 36,654 : x
  2. Step 2: Convert to fraction form
    17,931/36,654 = 36,654/x
  3. Step 3: Cross multiply
    17,931x = 36,654 × 36,654
  4. Step 4: Simplify right side
    17,931x = 1,343,515,716
  5. Step 5: Solve for x
    x = 1,343,515,716/17,931
  6. Step 6: Final answer
    x = 74,926.98

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.