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Finding the Third Proportional to 2,086 and 3,660

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Solution

The third proportional to 2,086 and 3,660 is: 6,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086 : 3,660 = 3,660 : x
  2. Step 2: Convert to fraction form
    2,086/3,660 = 3,660/x
  3. Step 3: Cross multiply
    2,086x = 3,660 × 3,660
  4. Step 4: Simplify right side
    2,086x = 13,395,600
  5. Step 5: Solve for x
    x = 13,395,600/2,086
  6. Step 6: Final answer
    x = 6,421.67

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.