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Finding the Third Proportional to 5,625 and 8,939

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Solution

The third proportional to 5,625 and 8,939 is: 14,205.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625 : 8,939 = 8,939 : x
  2. Step 2: Convert to fraction form
    5,625/8,939 = 8,939/x
  3. Step 3: Cross multiply
    5,625x = 8,939 × 8,939
  4. Step 4: Simplify right side
    5,625x = 79,905,721
  5. Step 5: Solve for x
    x = 79,905,721/5,625
  6. Step 6: Final answer
    x = 14,205.46

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.