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Finding the Fourth Proportional to 2,715.59, 4,073.24 and 960.68

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Solution

The fourth proportional to 2,715.59, 4,073.24 and 960.68 is: 1,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.59 : 4,073.24 = 960.68 : x
  2. Step 2: Convert to fraction form
    2,715.59/4,073.24 = 960.68/x
  3. Step 3: Cross multiply
    2,715.59x = 4,073.24 × 960.68
  4. Step 4: Simplify right side
    2,715.59x = 3,913,092.79
  5. Step 5: Solve for x
    x = 3,913,092.79/2,715.59
  6. Step 6: Final answer
    x = 1,440.97

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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.