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Finding the Third Proportional to 5,172 and 7,933

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Solution

The third proportional to 5,172 and 7,933 is: 12,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172 : 7,933 = 7,933 : x
  2. Step 2: Convert to fraction form
    5,172/7,933 = 7,933/x
  3. Step 3: Cross multiply
    5,172x = 7,933 × 7,933
  4. Step 4: Simplify right side
    5,172x = 62,932,489
  5. Step 5: Solve for x
    x = 62,932,489/5,172
  6. Step 6: Final answer
    x = 12,167.92

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.