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Finding the Fourth Proportional to 5,891.68, 8,131.16 and 3,239.32

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Solution

The fourth proportional to 5,891.68, 8,131.16 and 3,239.32 is: 4,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.68 : 8,131.16 = 3,239.32 : x
  2. Step 2: Convert to fraction form
    5,891.68/8,131.16 = 3,239.32/x
  3. Step 3: Cross multiply
    5,891.68x = 8,131.16 × 3,239.32
  4. Step 4: Simplify right side
    5,891.68x = 26,339,429.21
  5. Step 5: Solve for x
    x = 26,339,429.21/5,891.68
  6. Step 6: Final answer
    x = 4,470.61

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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.