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Finding the Third Proportional to 187 and 476

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Solution

The third proportional to 187 and 476 is: 1,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187 : 476 = 476 : x
  2. Step 2: Convert to fraction form
    187/476 = 476/x
  3. Step 3: Cross multiply
    187x = 476 × 476
  4. Step 4: Simplify right side
    187x = 226,576
  5. Step 5: Solve for x
    x = 226,576/187
  6. Step 6: Final answer
    x = 1,211.64

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Why These Related Problems?

These problems maintain the same ratio (2.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.