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Finding the Third Proportional to 3,759 and 4,323

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Solution

The third proportional to 3,759 and 4,323 is: 4,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759 : 4,323 = 4,323 : x
  2. Step 2: Convert to fraction form
    3,759/4,323 = 4,323/x
  3. Step 3: Cross multiply
    3,759x = 4,323 × 4,323
  4. Step 4: Simplify right side
    3,759x = 18,688,329
  5. Step 5: Solve for x
    x = 18,688,329/3,759
  6. Step 6: Final answer
    x = 4,971.62

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.