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Finding the Fourth Proportional to 13,659.93, 18,850.88 and 7,993.37

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Solution

The fourth proportional to 13,659.93, 18,850.88 and 7,993.37 is: 11,030.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.93 : 18,850.88 = 7,993.37 : x
  2. Step 2: Convert to fraction form
    13,659.93/18,850.88 = 7,993.37/x
  3. Step 3: Cross multiply
    13,659.93x = 18,850.88 × 7,993.37
  4. Step 4: Simplify right side
    13,659.93x = 150,681,924.44
  5. Step 5: Solve for x
    x = 150,681,924.44/13,659.93
  6. Step 6: Final answer
    x = 11,030.94

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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.