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Finding the Fourth Proportional to 5,422.88, 7,482.84 and 3,326.24

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Solution

The fourth proportional to 5,422.88, 7,482.84 and 3,326.24 is: 4,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.88 : 7,482.84 = 3,326.24 : x
  2. Step 2: Convert to fraction form
    5,422.88/7,482.84 = 3,326.24/x
  3. Step 3: Cross multiply
    5,422.88x = 7,482.84 × 3,326.24
  4. Step 4: Simplify right side
    5,422.88x = 24,889,721.72
  5. Step 5: Solve for x
    x = 24,889,721.72/5,422.88
  6. Step 6: Final answer
    x = 4,589.76

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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.