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Finding the Fourth Proportional to 3,874.15, 5,811.17 and 952.48

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Solution

The fourth proportional to 3,874.15, 5,811.17 and 952.48 is: 1,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.15 : 5,811.17 = 952.48 : x
  2. Step 2: Convert to fraction form
    3,874.15/5,811.17 = 952.48/x
  3. Step 3: Cross multiply
    3,874.15x = 5,811.17 × 952.48
  4. Step 4: Simplify right side
    3,874.15x = 5,535,021.95
  5. Step 5: Solve for x
    x = 5,535,021.95/3,874.15
  6. Step 6: Final answer
    x = 1,428.71

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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.