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Finding the Third Proportional to 3,934 and 8,583.50

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Solution

The third proportional to 3,934 and 8,583.50 is: 18,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934 : 8,583.50 = 8,583.50 : x
  2. Step 2: Convert to fraction form
    3,934/8,583.50 = 8,583.50/x
  3. Step 3: Cross multiply
    3,934x = 8,583.50 × 8,583.50
  4. Step 4: Simplify right side
    3,934x = 73,676,472.25
  5. Step 5: Solve for x
    x = 73,676,472.25/3,934
  6. Step 6: Final answer
    x = 18,728.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.