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Finding the Fourth Proportional to 5,733.62, 7,912.02 and 3,215.71

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Solution

The fourth proportional to 5,733.62, 7,912.02 and 3,215.71 is: 4,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,733.62 : 7,912.02 = 3,215.71 : x
  2. Step 2: Convert to fraction form
    5,733.62/7,912.02 = 3,215.71/x
  3. Step 3: Cross multiply
    5,733.62x = 7,912.02 × 3,215.71
  4. Step 4: Simplify right side
    5,733.62x = 25,442,761.83
  5. Step 5: Solve for x
    x = 25,442,761.83/5,733.62
  6. Step 6: Final answer
    x = 4,437.47

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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.