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Finding the Fourth Proportional to 19,790.25, 29,685.38 and 5,939.25

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Solution

The fourth proportional to 19,790.25, 29,685.38 and 5,939.25 is: 8,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.25 : 29,685.38 = 5,939.25 : x
  2. Step 2: Convert to fraction form
    19,790.25/29,685.38 = 5,939.25/x
  3. Step 3: Cross multiply
    19,790.25x = 29,685.38 × 5,939.25
  4. Step 4: Simplify right side
    19,790.25x = 176,308,893.17
  5. Step 5: Solve for x
    x = 176,308,893.17/19,790.25
  6. Step 6: Final answer
    x = 8,908.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.