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Finding the Third Proportional to 1,696 and 4,138

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Solution

The third proportional to 1,696 and 4,138 is: 10,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696 : 4,138 = 4,138 : x
  2. Step 2: Convert to fraction form
    1,696/4,138 = 4,138/x
  3. Step 3: Cross multiply
    1,696x = 4,138 × 4,138
  4. Step 4: Simplify right side
    1,696x = 17,123,044
  5. Step 5: Solve for x
    x = 17,123,044/1,696
  6. Step 6: Final answer
    x = 10,096.13

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Why These Related Problems?

These problems maintain the same ratio (2.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.