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Finding the Fourth Proportional to 19,360.73, 29,040.49 and 5,509.73

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Solution

The fourth proportional to 19,360.73, 29,040.49 and 5,509.73 is: 8,264.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.73 : 29,040.49 = 5,509.73 : x
  2. Step 2: Convert to fraction form
    19,360.73/29,040.49 = 5,509.73/x
  3. Step 3: Cross multiply
    19,360.73x = 29,040.49 × 5,509.73
  4. Step 4: Simplify right side
    19,360.73x = 160,005,258.97
  5. Step 5: Solve for x
    x = 160,005,258.97/19,360.73
  6. Step 6: Final answer
    x = 8,264.42

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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.