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Finding the Third Proportional to 318 and 759.50

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Solution

The third proportional to 318 and 759.50 is: 1,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318 : 759.50 = 759.50 : x
  2. Step 2: Convert to fraction form
    318/759.50 = 759.50/x
  3. Step 3: Cross multiply
    318x = 759.50 × 759.50
  4. Step 4: Simplify right side
    318x = 576,840.25
  5. Step 5: Solve for x
    x = 576,840.25/318
  6. Step 6: Final answer
    x = 1,813.96

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These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.