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Finding the Third Proportional to 28.31 and 44.81

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Solution

The third proportional to 28.31 and 44.81 is: 70.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.31 : 44.81 = 44.81 : x
  2. Step 2: Convert to fraction form
    28.31/44.81 = 44.81/x
  3. Step 3: Cross multiply
    28.31x = 44.81 × 44.81
  4. Step 4: Simplify right side
    28.31x = 2,008.16
  5. Step 5: Solve for x
    x = 2,008.16/28.31
  6. Step 6: Final answer
    x = 70.93

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.