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Finding the Third Proportional to 3,696 and 7,288.50

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Solution

The third proportional to 3,696 and 7,288.50 is: 14,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,696 : 7,288.50 = 7,288.50 : x
  2. Step 2: Convert to fraction form
    3,696/7,288.50 = 7,288.50/x
  3. Step 3: Cross multiply
    3,696x = 7,288.50 × 7,288.50
  4. Step 4: Simplify right side
    3,696x = 53,122,232.25
  5. Step 5: Solve for x
    x = 53,122,232.25/3,696
  6. Step 6: Final answer
    x = 14,372.90

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.