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Finding the Third Proportional to 5,396 and 8,071

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Solution

The third proportional to 5,396 and 8,071 is: 12,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396 : 8,071 = 8,071 : x
  2. Step 2: Convert to fraction form
    5,396/8,071 = 8,071/x
  3. Step 3: Cross multiply
    5,396x = 8,071 × 8,071
  4. Step 4: Simplify right side
    5,396x = 65,141,041
  5. Step 5: Solve for x
    x = 65,141,041/5,396
  6. Step 6: Final answer
    x = 12,072.10

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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.