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Finding the Third Proportional to 619 and 937.50

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Solution

The third proportional to 619 and 937.50 is: 1,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619 : 937.50 = 937.50 : x
  2. Step 2: Convert to fraction form
    619/937.50 = 937.50/x
  3. Step 3: Cross multiply
    619x = 937.50 × 937.50
  4. Step 4: Simplify right side
    619x = 878,906.25
  5. Step 5: Solve for x
    x = 878,906.25/619
  6. Step 6: Final answer
    x = 1,419.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.