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Finding the Third Proportional to 3,790 and 6,636

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Solution

The third proportional to 3,790 and 6,636 is: 11,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790 : 6,636 = 6,636 : x
  2. Step 2: Convert to fraction form
    3,790/6,636 = 6,636/x
  3. Step 3: Cross multiply
    3,790x = 6,636 × 6,636
  4. Step 4: Simplify right side
    3,790x = 44,036,496
  5. Step 5: Solve for x
    x = 44,036,496/3,790
  6. Step 6: Final answer
    x = 11,619.13

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.