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Finding the Third Proportional to 56,793 and 79,638

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Solution

The third proportional to 56,793 and 79,638 is: 111,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,793 : 79,638 = 79,638 : x
  2. Step 2: Convert to fraction form
    56,793/79,638 = 79,638/x
  3. Step 3: Cross multiply
    56,793x = 79,638 × 79,638
  4. Step 4: Simplify right side
    56,793x = 6,342,211,044
  5. Step 5: Solve for x
    x = 6,342,211,044/56,793
  6. Step 6: Final answer
    x = 111,672.41

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.