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Finding the Fourth Proportional to 7,993.17, 11,993.22 and 4,291.08

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Solution

The fourth proportional to 7,993.17, 11,993.22 and 4,291.08 is: 6,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.17 : 11,993.22 = 4,291.08 : x
  2. Step 2: Convert to fraction form
    7,993.17/11,993.22 = 4,291.08/x
  3. Step 3: Cross multiply
    7,993.17x = 11,993.22 × 4,291.08
  4. Step 4: Simplify right side
    7,993.17x = 51,463,845.02
  5. Step 5: Solve for x
    x = 51,463,845.02/7,993.17
  6. Step 6: Final answer
    x = 6,438.48

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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.