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Finding the Fourth Proportional to 6,664.66, 9,993.72 and 3,892.03

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Solution

The fourth proportional to 6,664.66, 9,993.72 and 3,892.03 is: 5,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.66 : 9,993.72 = 3,892.03 : x
  2. Step 2: Convert to fraction form
    6,664.66/9,993.72 = 3,892.03/x
  3. Step 3: Cross multiply
    6,664.66x = 9,993.72 × 3,892.03
  4. Step 4: Simplify right side
    6,664.66x = 38,895,858.05
  5. Step 5: Solve for x
    x = 38,895,858.05/6,664.66
  6. Step 6: Final answer
    x = 5,836.14

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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.