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Finding the Fourth Proportional to 2,674.26, 4,011.84 and 825.32

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Solution

The fourth proportional to 2,674.26, 4,011.84 and 825.32 is: 1,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.26 : 4,011.84 = 825.32 : x
  2. Step 2: Convert to fraction form
    2,674.26/4,011.84 = 825.32/x
  3. Step 3: Cross multiply
    2,674.26x = 4,011.84 × 825.32
  4. Step 4: Simplify right side
    2,674.26x = 3,311,051.79
  5. Step 5: Solve for x
    x = 3,311,051.79/2,674.26
  6. Step 6: Final answer
    x = 1,238.12

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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.