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Finding the Third Proportional to 187.75 and 383

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Solution

The third proportional to 187.75 and 383 is: 781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.75 : 383 = 383 : x
  2. Step 2: Convert to fraction form
    187.75/383 = 383/x
  3. Step 3: Cross multiply
    187.75x = 383 × 383
  4. Step 4: Simplify right side
    187.75x = 146,689
  5. Step 5: Solve for x
    x = 146,689/187.75
  6. Step 6: Final answer
    x = 781.30

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.