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Finding the Fourth Proportional to 19,858.62, 27,404.83 and 10,906.71

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Solution

The fourth proportional to 19,858.62, 27,404.83 and 10,906.71 is: 15,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.62 : 27,404.83 = 10,906.71 : x
  2. Step 2: Convert to fraction form
    19,858.62/27,404.83 = 10,906.71/x
  3. Step 3: Cross multiply
    19,858.62x = 27,404.83 × 10,906.71
  4. Step 4: Simplify right side
    19,858.62x = 298,896,533.41
  5. Step 5: Solve for x
    x = 298,896,533.41/19,858.62
  6. Step 6: Final answer
    x = 15,051.22

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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.