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Finding the Fourth Proportional to 5,338.88, 8,003.84 and 2,872.32

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Solution

The fourth proportional to 5,338.88, 8,003.84 and 2,872.32 is: 4,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.88 : 8,003.84 = 2,872.32 : x
  2. Step 2: Convert to fraction form
    5,338.88/8,003.84 = 2,872.32/x
  3. Step 3: Cross multiply
    5,338.88x = 8,003.84 × 2,872.32
  4. Step 4: Simplify right side
    5,338.88x = 22,989,589.71
  5. Step 5: Solve for x
    x = 22,989,589.71/5,338.88
  6. Step 6: Final answer
    x = 4,306.07

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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.