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Finding the Fourth Proportional to 2,709.97, 4,064.24 and 1,149.91

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Solution

The fourth proportional to 2,709.97, 4,064.24 and 1,149.91 is: 1,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.97 : 4,064.24 = 1,149.91 : x
  2. Step 2: Convert to fraction form
    2,709.97/4,064.24 = 1,149.91/x
  3. Step 3: Cross multiply
    2,709.97x = 4,064.24 × 1,149.91
  4. Step 4: Simplify right side
    2,709.97x = 4,673,502.93
  5. Step 5: Solve for x
    x = 4,673,502.93/2,709.97
  6. Step 6: Final answer
    x = 1,724.56

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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.