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Finding the Fourth Proportional to 19,356.73, 29,034.49 and 5,505.73

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Solution

The fourth proportional to 19,356.73, 29,034.49 and 5,505.73 is: 8,258.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.73 : 29,034.49 = 5,505.73 : x
  2. Step 2: Convert to fraction form
    19,356.73/29,034.49 = 5,505.73/x
  3. Step 3: Cross multiply
    19,356.73x = 29,034.49 × 5,505.73
  4. Step 4: Simplify right side
    19,356.73x = 159,856,062.63
  5. Step 5: Solve for x
    x = 159,856,062.63/19,356.73
  6. Step 6: Final answer
    x = 8,258.42

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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.