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Finding the Fourth Proportional to 3,504.56, 5,256 and 1,424

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Solution

The fourth proportional to 3,504.56, 5,256 and 1,424 is: 2,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.56 : 5,256 = 1,424 : x
  2. Step 2: Convert to fraction form
    3,504.56/5,256 = 1,424/x
  3. Step 3: Cross multiply
    3,504.56x = 5,256 × 1,424
  4. Step 4: Simplify right side
    3,504.56x = 7,484,544
  5. Step 5: Solve for x
    x = 7,484,544/3,504.56
  6. Step 6: Final answer
    x = 2,135.66

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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.