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Finding the Third Proportional to 374.75 and 759.50

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Solution

The third proportional to 374.75 and 759.50 is: 1,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.75 : 759.50 = 759.50 : x
  2. Step 2: Convert to fraction form
    374.75/759.50 = 759.50/x
  3. Step 3: Cross multiply
    374.75x = 759.50 × 759.50
  4. Step 4: Simplify right side
    374.75x = 576,840.25
  5. Step 5: Solve for x
    x = 576,840.25/374.75
  6. Step 6: Final answer
    x = 1,539.27

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.