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Finding the Fourth Proportional to 19,794.42, 27,309.52 and 11,290.43

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Solution

The fourth proportional to 19,794.42, 27,309.52 and 11,290.43 is: 15,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.42 : 27,309.52 = 11,290.43 : x
  2. Step 2: Convert to fraction form
    19,794.42/27,309.52 = 11,290.43/x
  3. Step 3: Cross multiply
    19,794.42x = 27,309.52 × 11,290.43
  4. Step 4: Simplify right side
    19,794.42x = 308,336,223.89
  5. Step 5: Solve for x
    x = 308,336,223.89/19,794.42
  6. Step 6: Final answer
    x = 15,576.93

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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.