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Finding the Fourth Proportional to 13,843.85, 20,769.08 and 4,483.88

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Solution

The fourth proportional to 13,843.85, 20,769.08 and 4,483.88 is: 6,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.85 : 20,769.08 = 4,483.88 : x
  2. Step 2: Convert to fraction form
    13,843.85/20,769.08 = 4,483.88/x
  3. Step 3: Cross multiply
    13,843.85x = 20,769.08 × 4,483.88
  4. Step 4: Simplify right side
    13,843.85x = 93,125,936.17
  5. Step 5: Solve for x
    x = 93,125,936.17/13,843.85
  6. Step 6: Final answer
    x = 6,726.88

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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.