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Finding the Third Proportional to 514.75 and 850.75

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Solution

The third proportional to 514.75 and 850.75 is: 1,406.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.75 : 850.75 = 850.75 : x
  2. Step 2: Convert to fraction form
    514.75/850.75 = 850.75/x
  3. Step 3: Cross multiply
    514.75x = 850.75 × 850.75
  4. Step 4: Simplify right side
    514.75x = 723,775.56
  5. Step 5: Solve for x
    x = 723,775.56/514.75
  6. Step 6: Final answer
    x = 1,406.07

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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.