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Finding the Fourth Proportional to 6,661.67, 9,983.27 and 4,192.07

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Solution

The fourth proportional to 6,661.67, 9,983.27 and 4,192.07 is: 6,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.67 : 9,983.27 = 4,192.07 : x
  2. Step 2: Convert to fraction form
    6,661.67/9,983.27 = 4,192.07/x
  3. Step 3: Cross multiply
    6,661.67x = 9,983.27 × 4,192.07
  4. Step 4: Simplify right side
    6,661.67x = 41,850,527.23
  5. Step 5: Solve for x
    x = 41,850,527.23/6,661.67
  6. Step 6: Final answer
    x = 6,282.29

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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.