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Finding the Third Proportional to 5,696 and 13,790

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Solution

The third proportional to 5,696 and 13,790 is: 33,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,696 : 13,790 = 13,790 : x
  2. Step 2: Convert to fraction form
    5,696/13,790 = 13,790/x
  3. Step 3: Cross multiply
    5,696x = 13,790 × 13,790
  4. Step 4: Simplify right side
    5,696x = 190,164,100
  5. Step 5: Solve for x
    x = 190,164,100/5,696
  6. Step 6: Final answer
    x = 33,385.55

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.