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Finding the Fourth Proportional to 29,331.96, 40,465.44 and 18,571.60

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Solution

The fourth proportional to 29,331.96, 40,465.44 and 18,571.60 is: 25,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,331.96 : 40,465.44 = 18,571.60 : x
  2. Step 2: Convert to fraction form
    29,331.96/40,465.44 = 18,571.60/x
  3. Step 3: Cross multiply
    29,331.96x = 40,465.44 × 18,571.60
  4. Step 4: Simplify right side
    29,331.96x = 751,507,965.50
  5. Step 5: Solve for x
    x = 751,507,965.50/29,331.96
  6. Step 6: Final answer
    x = 25,620.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.