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Finding the Fourth Proportional to 3,568.64, 5,352.05 and 1,719.27

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Solution

The fourth proportional to 3,568.64, 5,352.05 and 1,719.27 is: 2,578.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.64 : 5,352.05 = 1,719.27 : x
  2. Step 2: Convert to fraction form
    3,568.64/5,352.05 = 1,719.27/x
  3. Step 3: Cross multiply
    3,568.64x = 5,352.05 × 1,719.27
  4. Step 4: Simplify right side
    3,568.64x = 9,201,619.00
  5. Step 5: Solve for x
    x = 9,201,619.00/3,568.64
  6. Step 6: Final answer
    x = 2,578.47

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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.