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Finding the Fourth Proportional to 13,273.33, 19,906.98 and 3,913.98

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Solution

The fourth proportional to 13,273.33, 19,906.98 and 3,913.98 is: 5,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.33 : 19,906.98 = 3,913.98 : x
  2. Step 2: Convert to fraction form
    13,273.33/19,906.98 = 3,913.98/x
  3. Step 3: Cross multiply
    13,273.33x = 19,906.98 × 3,913.98
  4. Step 4: Simplify right side
    13,273.33x = 77,915,521.58
  5. Step 5: Solve for x
    x = 77,915,521.58/13,273.33
  6. Step 6: Final answer
    x = 5,870.08

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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.