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Finding the Fourth Proportional to 5,550.72, 7,661.30 and 3,194.24

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Solution

The fourth proportional to 5,550.72, 7,661.30 and 3,194.24 is: 4,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.72 : 7,661.30 = 3,194.24 : x
  2. Step 2: Convert to fraction form
    5,550.72/7,661.30 = 3,194.24/x
  3. Step 3: Cross multiply
    5,550.72x = 7,661.30 × 3,194.24
  4. Step 4: Simplify right side
    5,550.72x = 24,472,030.91
  5. Step 5: Solve for x
    x = 24,472,030.91/5,550.72
  6. Step 6: Final answer
    x = 4,408.80

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1.5x scale

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.