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Finding the Fourth Proportional to 2,998.72, 4,134.81 and 2,525.92

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Solution

The fourth proportional to 2,998.72, 4,134.81 and 2,525.92 is: 3,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.72 : 4,134.81 = 2,525.92 : x
  2. Step 2: Convert to fraction form
    2,998.72/4,134.81 = 2,525.92/x
  3. Step 3: Cross multiply
    2,998.72x = 4,134.81 × 2,525.92
  4. Step 4: Simplify right side
    2,998.72x = 10,444,198.41
  5. Step 5: Solve for x
    x = 10,444,198.41/2,998.72
  6. Step 6: Final answer
    x = 3,482.88

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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.