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Finding the Third Proportional to 31.64 and 44.58

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Solution

The third proportional to 31.64 and 44.58 is: 62.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.64 : 44.58 = 44.58 : x
  2. Step 2: Convert to fraction form
    31.64/44.58 = 44.58/x
  3. Step 3: Cross multiply
    31.64x = 44.58 × 44.58
  4. Step 4: Simplify right side
    31.64x = 1,987.21
  5. Step 5: Solve for x
    x = 1,987.21/31.64
  6. Step 6: Final answer
    x = 62.81

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.