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Finding the Fourth Proportional to 19,940.73, 29,911.11 and 5,901

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Solution

The fourth proportional to 19,940.73, 29,911.11 and 5,901 is: 8,851.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.73 : 29,911.11 = 5,901 : x
  2. Step 2: Convert to fraction form
    19,940.73/29,911.11 = 5,901/x
  3. Step 3: Cross multiply
    19,940.73x = 29,911.11 × 5,901
  4. Step 4: Simplify right side
    19,940.73x = 176,505,460.11
  5. Step 5: Solve for x
    x = 176,505,460.11/19,940.73
  6. Step 6: Final answer
    x = 8,851.50

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Why These Related Problems?

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