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Finding the Third Proportional to 395.50 and 632

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Solution

The third proportional to 395.50 and 632 is: 1,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.50 : 632 = 632 : x
  2. Step 2: Convert to fraction form
    395.50/632 = 632/x
  3. Step 3: Cross multiply
    395.50x = 632 × 632
  4. Step 4: Simplify right side
    395.50x = 399,424
  5. Step 5: Solve for x
    x = 399,424/395.50
  6. Step 6: Final answer
    x = 1,009.92

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.