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Finding the Third Proportional to 6,904 and 10,115

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Solution

The third proportional to 6,904 and 10,115 is: 14,819.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904 : 10,115 = 10,115 : x
  2. Step 2: Convert to fraction form
    6,904/10,115 = 10,115/x
  3. Step 3: Cross multiply
    6,904x = 10,115 × 10,115
  4. Step 4: Simplify right side
    6,904x = 102,313,225
  5. Step 5: Solve for x
    x = 102,313,225/6,904
  6. Step 6: Final answer
    x = 14,819.41

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.