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Finding the Fourth Proportional to 3,711.66, 5,121.63 and 2,295.66

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Solution

The fourth proportional to 3,711.66, 5,121.63 and 2,295.66 is: 3,167.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.66 : 5,121.63 = 2,295.66 : x
  2. Step 2: Convert to fraction form
    3,711.66/5,121.63 = 2,295.66/x
  3. Step 3: Cross multiply
    3,711.66x = 5,121.63 × 2,295.66
  4. Step 4: Simplify right side
    3,711.66x = 11,757,521.13
  5. Step 5: Solve for x
    x = 11,757,521.13/3,711.66
  6. Step 6: Final answer
    x = 3,167.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.