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Finding the Third Proportional to 1,860 and 3,756

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Solution

The third proportional to 1,860 and 3,756 is: 7,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860 : 3,756 = 3,756 : x
  2. Step 2: Convert to fraction form
    1,860/3,756 = 3,756/x
  3. Step 3: Cross multiply
    1,860x = 3,756 × 3,756
  4. Step 4: Simplify right side
    1,860x = 14,107,536
  5. Step 5: Solve for x
    x = 14,107,536/1,860
  6. Step 6: Final answer
    x = 7,584.70

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.