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Finding the Third Proportional to 3,558 and 5,679

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Solution

The third proportional to 3,558 and 5,679 is: 9,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558 : 5,679 = 5,679 : x
  2. Step 2: Convert to fraction form
    3,558/5,679 = 5,679/x
  3. Step 3: Cross multiply
    3,558x = 5,679 × 5,679
  4. Step 4: Simplify right side
    3,558x = 32,251,041
  5. Step 5: Solve for x
    x = 32,251,041/3,558
  6. Step 6: Final answer
    x = 9,064.37

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.