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Finding the Third Proportional to 5,987 and 7,085

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Solution

The third proportional to 5,987 and 7,085 is: 8,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987 : 7,085 = 7,085 : x
  2. Step 2: Convert to fraction form
    5,987/7,085 = 7,085/x
  3. Step 3: Cross multiply
    5,987x = 7,085 × 7,085
  4. Step 4: Simplify right side
    5,987x = 50,197,225
  5. Step 5: Solve for x
    x = 50,197,225/5,987
  6. Step 6: Final answer
    x = 8,384.37

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.