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Finding the Fourth Proportional to 2,908.56, 4,363.48 and 960.68

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Solution

The fourth proportional to 2,908.56, 4,363.48 and 960.68 is: 1,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.56 : 4,363.48 = 960.68 : x
  2. Step 2: Convert to fraction form
    2,908.56/4,363.48 = 960.68/x
  3. Step 3: Cross multiply
    2,908.56x = 4,363.48 × 960.68
  4. Step 4: Simplify right side
    2,908.56x = 4,191,907.97
  5. Step 5: Solve for x
    x = 4,191,907.97/2,908.56
  6. Step 6: Final answer
    x = 1,441.23

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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.