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Finding the Third Proportional to 3,600 and 5,386

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Solution

The third proportional to 3,600 and 5,386 is: 8,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600 : 5,386 = 5,386 : x
  2. Step 2: Convert to fraction form
    3,600/5,386 = 5,386/x
  3. Step 3: Cross multiply
    3,600x = 5,386 × 5,386
  4. Step 4: Simplify right side
    3,600x = 29,008,996
  5. Step 5: Solve for x
    x = 29,008,996/3,600
  6. Step 6: Final answer
    x = 8,058.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.