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Finding the Third Proportional to 187.50 and 384

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Solution

The third proportional to 187.50 and 384 is: 786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.50 : 384 = 384 : x
  2. Step 2: Convert to fraction form
    187.50/384 = 384/x
  3. Step 3: Cross multiply
    187.50x = 384 × 384
  4. Step 4: Simplify right side
    187.50x = 147,456
  5. Step 5: Solve for x
    x = 147,456/187.50
  6. Step 6: Final answer
    x = 786.43

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.