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Finding the Fourth Proportional to 3,551.97, 5,328 and 1,360.83

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Solution

The fourth proportional to 3,551.97, 5,328 and 1,360.83 is: 2,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.97 : 5,328 = 1,360.83 : x
  2. Step 2: Convert to fraction form
    3,551.97/5,328 = 1,360.83/x
  3. Step 3: Cross multiply
    3,551.97x = 5,328 × 1,360.83
  4. Step 4: Simplify right side
    3,551.97x = 7,250,502.24
  5. Step 5: Solve for x
    x = 7,250,502.24/3,551.97
  6. Step 6: Final answer
    x = 2,041.26

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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.