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Finding the Third Proportional to 44.75 and 75.75

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Solution

The third proportional to 44.75 and 75.75 is: 128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.75 : 75.75 = 75.75 : x
  2. Step 2: Convert to fraction form
    44.75/75.75 = 75.75/x
  3. Step 3: Cross multiply
    44.75x = 75.75 × 75.75
  4. Step 4: Simplify right side
    44.75x = 5,738.06
  5. Step 5: Solve for x
    x = 5,738.06/44.75
  6. Step 6: Final answer
    x = 128.22

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.