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Finding the Fourth Proportional to 3,653.94, 5,480.91 and 2,092.86

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Solution

The fourth proportional to 3,653.94, 5,480.91 and 2,092.86 is: 3,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.94 : 5,480.91 = 2,092.86 : x
  2. Step 2: Convert to fraction form
    3,653.94/5,480.91 = 2,092.86/x
  3. Step 3: Cross multiply
    3,653.94x = 5,480.91 × 2,092.86
  4. Step 4: Simplify right side
    3,653.94x = 11,470,772.07
  5. Step 5: Solve for x
    x = 11,470,772.07/3,653.94
  6. Step 6: Final answer
    x = 3,139.29

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1.5x scale

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.