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Finding the Third Proportional to 74.75 and 116

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Solution

The third proportional to 74.75 and 116 is: 180.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.75 : 116 = 116 : x
  2. Step 2: Convert to fraction form
    74.75/116 = 116/x
  3. Step 3: Cross multiply
    74.75x = 116 × 116
  4. Step 4: Simplify right side
    74.75x = 13,456
  5. Step 5: Solve for x
    x = 13,456/74.75
  6. Step 6: Final answer
    x = 180.01

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.