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Finding the Fourth Proportional to 3,551.98, 5,324.64 and 1,360.84

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Solution

The fourth proportional to 3,551.98, 5,324.64 and 1,360.84 is: 2,039.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.98 : 5,324.64 = 1,360.84 : x
  2. Step 2: Convert to fraction form
    3,551.98/5,324.64 = 1,360.84/x
  3. Step 3: Cross multiply
    3,551.98x = 5,324.64 × 1,360.84
  4. Step 4: Simplify right side
    3,551.98x = 7,245,983.10
  5. Step 5: Solve for x
    x = 7,245,983.10/3,551.98
  6. Step 6: Final answer
    x = 2,039.98

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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.