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Finding the Third Proportional to 771.50 and 1,194.75

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Solution

The third proportional to 771.50 and 1,194.75 is: 1,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    771.50 : 1,194.75 = 1,194.75 : x
  2. Step 2: Convert to fraction form
    771.50/1,194.75 = 1,194.75/x
  3. Step 3: Cross multiply
    771.50x = 1,194.75 × 1,194.75
  4. Step 4: Simplify right side
    771.50x = 1,427,427.56
  5. Step 5: Solve for x
    x = 1,427,427.56/771.50
  6. Step 6: Final answer
    x = 1,850.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.