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Finding the Third Proportional to 2,405 and 3,756

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Solution

The third proportional to 2,405 and 3,756 is: 5,865.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405 : 3,756 = 3,756 : x
  2. Step 2: Convert to fraction form
    2,405/3,756 = 3,756/x
  3. Step 3: Cross multiply
    2,405x = 3,756 × 3,756
  4. Step 4: Simplify right side
    2,405x = 14,107,536
  5. Step 5: Solve for x
    x = 14,107,536/2,405
  6. Step 6: Final answer
    x = 5,865.92

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.