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Finding the Fourth Proportional to 11,574.11, 17,361.17 and 2,809.03

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Solution

The fourth proportional to 11,574.11, 17,361.17 and 2,809.03 is: 4,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,574.11 : 17,361.17 = 2,809.03 : x
  2. Step 2: Convert to fraction form
    11,574.11/17,361.17 = 2,809.03/x
  3. Step 3: Cross multiply
    11,574.11x = 17,361.17 × 2,809.03
  4. Step 4: Simplify right side
    11,574.11x = 48,768,033.00
  5. Step 5: Solve for x
    x = 48,768,033.00/11,574.11
  6. Step 6: Final answer
    x = 4,213.55

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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.