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Finding the Fourth Proportional to 5,422.24, 7,482.24 and 3,183.88

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Solution

The fourth proportional to 5,422.24, 7,482.24 and 3,183.88 is: 4,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.24 : 7,482.24 = 3,183.88 : x
  2. Step 2: Convert to fraction form
    5,422.24/7,482.24 = 3,183.88/x
  3. Step 3: Cross multiply
    5,422.24x = 7,482.24 × 3,183.88
  4. Step 4: Simplify right side
    5,422.24x = 23,822,554.29
  5. Step 5: Solve for x
    x = 23,822,554.29/5,422.24
  6. Step 6: Final answer
    x = 4,393.49

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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.