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Finding the Third Proportional to 517 and 732.50

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Solution

The third proportional to 517 and 732.50 is: 1,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    517 : 732.50 = 732.50 : x
  2. Step 2: Convert to fraction form
    517/732.50 = 732.50/x
  3. Step 3: Cross multiply
    517x = 732.50 × 732.50
  4. Step 4: Simplify right side
    517x = 536,556.25
  5. Step 5: Solve for x
    x = 536,556.25/517
  6. Step 6: Final answer
    x = 1,037.83

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.