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Finding the Fourth Proportional to 5,979.98, 8,253.11 and 3,622.12

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Solution

The fourth proportional to 5,979.98, 8,253.11 and 3,622.12 is: 4,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.98 : 8,253.11 = 3,622.12 : x
  2. Step 2: Convert to fraction form
    5,979.98/8,253.11 = 3,622.12/x
  3. Step 3: Cross multiply
    5,979.98x = 8,253.11 × 3,622.12
  4. Step 4: Simplify right side
    5,979.98x = 29,893,754.79
  5. Step 5: Solve for x
    x = 29,893,754.79/5,979.98
  6. Step 6: Final answer
    x = 4,998.97

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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.