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Finding the Fourth Proportional to 6,653.67, 9,984.96 and 4,190.19

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Solution

The fourth proportional to 6,653.67, 9,984.96 and 4,190.19 is: 6,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.67 : 9,984.96 = 4,190.19 : x
  2. Step 2: Convert to fraction form
    6,653.67/9,984.96 = 4,190.19/x
  3. Step 3: Cross multiply
    6,653.67x = 9,984.96 × 4,190.19
  4. Step 4: Simplify right side
    6,653.67x = 41,838,879.54
  5. Step 5: Solve for x
    x = 41,838,879.54/6,653.67
  6. Step 6: Final answer
    x = 6,288.09

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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.