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Finding the Third Proportional to 517.50 and 752.63

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Solution

The third proportional to 517.50 and 752.63 is: 1,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.50 : 752.63 = 752.63 : x
  2. Step 2: Convert to fraction form
    517.50/752.63 = 752.63/x
  3. Step 3: Cross multiply
    517.50x = 752.63 × 752.63
  4. Step 4: Simplify right side
    517.50x = 566,444.39
  5. Step 5: Solve for x
    x = 566,444.39/517.50
  6. Step 6: Final answer
    x = 1,094.58

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.