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Finding the Fourth Proportional to 41,392.70, 62,091.45 and 11,812.70

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Solution

The fourth proportional to 41,392.70, 62,091.45 and 11,812.70 is: 17,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,392.70 : 62,091.45 = 11,812.70 : x
  2. Step 2: Convert to fraction form
    41,392.70/62,091.45 = 11,812.70/x
  3. Step 3: Cross multiply
    41,392.70x = 62,091.45 × 11,812.70
  4. Step 4: Simplify right side
    41,392.70x = 733,467,671.42
  5. Step 5: Solve for x
    x = 733,467,671.42/41,392.70
  6. Step 6: Final answer
    x = 17,719.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.