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Finding the Third Proportional to 4,085 and 5,791

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Solution

The third proportional to 4,085 and 5,791 is: 8,209.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085 : 5,791 = 5,791 : x
  2. Step 2: Convert to fraction form
    4,085/5,791 = 5,791/x
  3. Step 3: Cross multiply
    4,085x = 5,791 × 5,791
  4. Step 4: Simplify right side
    4,085x = 33,535,681
  5. Step 5: Solve for x
    x = 33,535,681/4,085
  6. Step 6: Final answer
    x = 8,209.47

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.