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Finding the Fourth Proportional to 6,661.94, 9,194.02 and 3,829.78

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Solution

The fourth proportional to 6,661.94, 9,194.02 and 3,829.78 is: 5,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.94 : 9,194.02 = 3,829.78 : x
  2. Step 2: Convert to fraction form
    6,661.94/9,194.02 = 3,829.78/x
  3. Step 3: Cross multiply
    6,661.94x = 9,194.02 × 3,829.78
  4. Step 4: Simplify right side
    6,661.94x = 35,211,041.36
  5. Step 5: Solve for x
    x = 35,211,041.36/6,661.94
  6. Step 6: Final answer
    x = 5,285.40

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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.