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Finding the Fourth Proportional to 31,485.93, 43,450.88 and 17,338.88

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Solution

The fourth proportional to 31,485.93, 43,450.88 and 17,338.88 is: 23,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.93 : 43,450.88 = 17,338.88 : x
  2. Step 2: Convert to fraction form
    31,485.93/43,450.88 = 17,338.88/x
  3. Step 3: Cross multiply
    31,485.93x = 43,450.88 × 17,338.88
  4. Step 4: Simplify right side
    31,485.93x = 753,389,290.27
  5. Step 5: Solve for x
    x = 753,389,290.27/31,485.93
  6. Step 6: Final answer
    x = 23,927.81

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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.