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Finding the Third Proportional to 878.50 and 1,893.13

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Solution

The third proportional to 878.50 and 1,893.13 is: 4,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878.50 : 1,893.13 = 1,893.13 : x
  2. Step 2: Convert to fraction form
    878.50/1,893.13 = 1,893.13/x
  3. Step 3: Cross multiply
    878.50x = 1,893.13 × 1,893.13
  4. Step 4: Simplify right side
    878.50x = 3,583,922.27
  5. Step 5: Solve for x
    x = 3,583,922.27/878.50
  6. Step 6: Final answer
    x = 4,079.59

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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.