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Finding the Third Proportional to 879.50 and 1,893

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Solution

The third proportional to 879.50 and 1,893 is: 4,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    879.50 : 1,893 = 1,893 : x
  2. Step 2: Convert to fraction form
    879.50/1,893 = 1,893/x
  3. Step 3: Cross multiply
    879.50x = 1,893 × 1,893
  4. Step 4: Simplify right side
    879.50x = 3,583,449
  5. Step 5: Solve for x
    x = 3,583,449/879.50
  6. Step 6: Final answer
    x = 4,074.42

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.