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Finding the Third Proportional to 538.50 and 888.75

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Solution

The third proportional to 538.50 and 888.75 is: 1,466.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.50 : 888.75 = 888.75 : x
  2. Step 2: Convert to fraction form
    538.50/888.75 = 888.75/x
  3. Step 3: Cross multiply
    538.50x = 888.75 × 888.75
  4. Step 4: Simplify right side
    538.50x = 789,876.56
  5. Step 5: Solve for x
    x = 789,876.56/538.50
  6. Step 6: Final answer
    x = 1,466.81

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.