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Finding the Third Proportional to 36,120.75 and 47,928

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Solution

The third proportional to 36,120.75 and 47,928 is: 63,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.75 : 47,928 = 47,928 : x
  2. Step 2: Convert to fraction form
    36,120.75/47,928 = 47,928/x
  3. Step 3: Cross multiply
    36,120.75x = 47,928 × 47,928
  4. Step 4: Simplify right side
    36,120.75x = 2,297,093,184
  5. Step 5: Solve for x
    x = 2,297,093,184/36,120.75
  6. Step 6: Final answer
    x = 63,594.84

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.