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Finding the Fourth Proportional to 5,685.83, 7,843.92 and 3,326.93

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Solution

The fourth proportional to 5,685.83, 7,843.92 and 3,326.93 is: 4,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.83 : 7,843.92 = 3,326.93 : x
  2. Step 2: Convert to fraction form
    5,685.83/7,843.92 = 3,326.93/x
  3. Step 3: Cross multiply
    5,685.83x = 7,843.92 × 3,326.93
  4. Step 4: Simplify right side
    5,685.83x = 26,096,172.77
  5. Step 5: Solve for x
    x = 26,096,172.77/5,685.83
  6. Step 6: Final answer
    x = 4,589.69

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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.