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Finding the Third Proportional to 239.50 and 364.25

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Solution

The third proportional to 239.50 and 364.25 is: 553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.50 : 364.25 = 364.25 : x
  2. Step 2: Convert to fraction form
    239.50/364.25 = 364.25/x
  3. Step 3: Cross multiply
    239.50x = 364.25 × 364.25
  4. Step 4: Simplify right side
    239.50x = 132,678.06
  5. Step 5: Solve for x
    x = 132,678.06/239.50
  6. Step 6: Final answer
    x = 553.98

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.