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Finding the Third Proportional to 374.50 and 427

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Solution

The third proportional to 374.50 and 427 is: 486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.50 : 427 = 427 : x
  2. Step 2: Convert to fraction form
    374.50/427 = 427/x
  3. Step 3: Cross multiply
    374.50x = 427 × 427
  4. Step 4: Simplify right side
    374.50x = 182,329
  5. Step 5: Solve for x
    x = 182,329/374.50
  6. Step 6: Final answer
    x = 486.86

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