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Finding the Fourth Proportional to 19,323.88, 28,998.78 and 6,843.88

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Solution

The fourth proportional to 19,323.88, 28,998.78 and 6,843.88 is: 10,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.88 : 28,998.78 = 6,843.88 : x
  2. Step 2: Convert to fraction form
    19,323.88/28,998.78 = 6,843.88/x
  3. Step 3: Cross multiply
    19,323.88x = 28,998.78 × 6,843.88
  4. Step 4: Simplify right side
    19,323.88x = 198,464,170.47
  5. Step 5: Solve for x
    x = 198,464,170.47/19,323.88
  6. Step 6: Final answer
    x = 10,270.41

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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.