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Finding the Third Proportional to 7,086 and 8,666

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Solution

The third proportional to 7,086 and 8,666 is: 10,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086 : 8,666 = 8,666 : x
  2. Step 2: Convert to fraction form
    7,086/8,666 = 8,666/x
  3. Step 3: Cross multiply
    7,086x = 8,666 × 8,666
  4. Step 4: Simplify right side
    7,086x = 75,099,556
  5. Step 5: Solve for x
    x = 75,099,556/7,086
  6. Step 6: Final answer
    x = 10,598.30

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.