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Finding the Third Proportional to 31.88 and 46.06

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Solution

The third proportional to 31.88 and 46.06 is: 66.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.88 : 46.06 = 46.06 : x
  2. Step 2: Convert to fraction form
    31.88/46.06 = 46.06/x
  3. Step 3: Cross multiply
    31.88x = 46.06 × 46.06
  4. Step 4: Simplify right side
    31.88x = 2,121.75
  5. Step 5: Solve for x
    x = 2,121.75/31.88
  6. Step 6: Final answer
    x = 66.56

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.