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Finding the Third Proportional to 3,720 and 5,823

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Solution

The third proportional to 3,720 and 5,823 is: 9,114.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720 : 5,823 = 5,823 : x
  2. Step 2: Convert to fraction form
    3,720/5,823 = 5,823/x
  3. Step 3: Cross multiply
    3,720x = 5,823 × 5,823
  4. Step 4: Simplify right side
    3,720x = 33,907,329
  5. Step 5: Solve for x
    x = 33,907,329/3,720
  6. Step 6: Final answer
    x = 9,114.87

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.