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Finding the Fourth Proportional to 3,159.28, 4,738.84 and 967.96

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Solution

The fourth proportional to 3,159.28, 4,738.84 and 967.96 is: 1,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.28 : 4,738.84 = 967.96 : x
  2. Step 2: Convert to fraction form
    3,159.28/4,738.84 = 967.96/x
  3. Step 3: Cross multiply
    3,159.28x = 4,738.84 × 967.96
  4. Step 4: Simplify right side
    3,159.28x = 4,587,007.57
  5. Step 5: Solve for x
    x = 4,587,007.57/3,159.28
  6. Step 6: Final answer
    x = 1,451.92

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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.