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Finding the Fourth Proportional to 7,614.81, 11,422.22 and 4,107.71

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Solution

The fourth proportional to 7,614.81, 11,422.22 and 4,107.71 is: 6,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.81 : 11,422.22 = 4,107.71 : x
  2. Step 2: Convert to fraction form
    7,614.81/11,422.22 = 4,107.71/x
  3. Step 3: Cross multiply
    7,614.81x = 11,422.22 × 4,107.71
  4. Step 4: Simplify right side
    7,614.81x = 46,919,175.33
  5. Step 5: Solve for x
    x = 46,919,175.33/7,614.81
  6. Step 6: Final answer
    x = 6,161.57

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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.