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Finding the Third Proportional to 43.75 and 47.13

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Solution

The third proportional to 43.75 and 47.13 is: 50.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.75 : 47.13 = 47.13 : x
  2. Step 2: Convert to fraction form
    43.75/47.13 = 47.13/x
  3. Step 3: Cross multiply
    43.75x = 47.13 × 47.13
  4. Step 4: Simplify right side
    43.75x = 2,220.77
  5. Step 5: Solve for x
    x = 2,220.77/43.75
  6. Step 6: Final answer
    x = 50.76

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.