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Finding the Fourth Proportional to 3,568.81, 5,339.22 and 3,153.28

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Solution

The fourth proportional to 3,568.81, 5,339.22 and 3,153.28 is: 4,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.81 : 5,339.22 = 3,153.28 : x
  2. Step 2: Convert to fraction form
    3,568.81/5,339.22 = 3,153.28/x
  3. Step 3: Cross multiply
    3,568.81x = 5,339.22 × 3,153.28
  4. Step 4: Simplify right side
    3,568.81x = 16,836,055.64
  5. Step 5: Solve for x
    x = 16,836,055.64/3,568.81
  6. Step 6: Final answer
    x = 4,717.55

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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.