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Finding the Third Proportional to 5,406 and 5,886

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Solution

The third proportional to 5,406 and 5,886 is: 6,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406 : 5,886 = 5,886 : x
  2. Step 2: Convert to fraction form
    5,406/5,886 = 5,886/x
  3. Step 3: Cross multiply
    5,406x = 5,886 × 5,886
  4. Step 4: Simplify right side
    5,406x = 34,644,996
  5. Step 5: Solve for x
    x = 34,644,996/5,406
  6. Step 6: Final answer
    x = 6,408.62

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.