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Finding the Fourth Proportional to 3,019.52, 4,529.28 and 968.96

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Solution

The fourth proportional to 3,019.52, 4,529.28 and 968.96 is: 1,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.52 : 4,529.28 = 968.96 : x
  2. Step 2: Convert to fraction form
    3,019.52/4,529.28 = 968.96/x
  3. Step 3: Cross multiply
    3,019.52x = 4,529.28 × 968.96
  4. Step 4: Simplify right side
    3,019.52x = 4,388,691.15
  5. Step 5: Solve for x
    x = 4,388,691.15/3,019.52
  6. Step 6: Final answer
    x = 1,453.44

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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.