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Finding the Third Proportional to 6,904 and 14,690

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Solution

The third proportional to 6,904 and 14,690 is: 31,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904 : 14,690 = 14,690 : x
  2. Step 2: Convert to fraction form
    6,904/14,690 = 14,690/x
  3. Step 3: Cross multiply
    6,904x = 14,690 × 14,690
  4. Step 4: Simplify right side
    6,904x = 215,796,100
  5. Step 5: Solve for x
    x = 215,796,100/6,904
  6. Step 6: Final answer
    x = 31,256.68

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.