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Finding the Fourth Proportional to 11,843.54, 17,748.35 and 8,698.88

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Solution

The fourth proportional to 11,843.54, 17,748.35 and 8,698.88 is: 13,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.54 : 17,748.35 = 8,698.88 : x
  2. Step 2: Convert to fraction form
    11,843.54/17,748.35 = 8,698.88/x
  3. Step 3: Cross multiply
    11,843.54x = 17,748.35 × 8,698.88
  4. Step 4: Simplify right side
    11,843.54x = 154,390,766.85
  5. Step 5: Solve for x
    x = 154,390,766.85/11,843.54
  6. Step 6: Final answer
    x = 13,035.86

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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.