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Finding the Fourth Proportional to 3,468.51, 4,786.57 and 1,896.61

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Solution

The fourth proportional to 3,468.51, 4,786.57 and 1,896.61 is: 2,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.51 : 4,786.57 = 1,896.61 : x
  2. Step 2: Convert to fraction form
    3,468.51/4,786.57 = 1,896.61/x
  3. Step 3: Cross multiply
    3,468.51x = 4,786.57 × 1,896.61
  4. Step 4: Simplify right side
    3,468.51x = 9,078,247.04
  5. Step 5: Solve for x
    x = 9,078,247.04/3,468.51
  6. Step 6: Final answer
    x = 2,617.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.