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Finding the Fourth Proportional to 7,324.31, 10,990.57 and 2,944.84

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Solution

The fourth proportional to 7,324.31, 10,990.57 and 2,944.84 is: 4,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.31 : 10,990.57 = 2,944.84 : x
  2. Step 2: Convert to fraction form
    7,324.31/10,990.57 = 2,944.84/x
  3. Step 3: Cross multiply
    7,324.31x = 10,990.57 × 2,944.84
  4. Step 4: Simplify right side
    7,324.31x = 32,365,470.16
  5. Step 5: Solve for x
    x = 32,365,470.16/7,324.31
  6. Step 6: Final answer
    x = 4,418.91

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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.