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Finding the Third Proportional to 86.06 and 177.75

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Solution

The third proportional to 86.06 and 177.75 is: 367.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86.06 : 177.75 = 177.75 : x
  2. Step 2: Convert to fraction form
    86.06/177.75 = 177.75/x
  3. Step 3: Cross multiply
    86.06x = 177.75 × 177.75
  4. Step 4: Simplify right side
    86.06x = 31,595.06
  5. Step 5: Solve for x
    x = 31,595.06/86.06
  6. Step 6: Final answer
    x = 367.12

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.