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Finding the Fourth Proportional to 11,924.96, 17,899.88 and 8,808.48

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Solution

The fourth proportional to 11,924.96, 17,899.88 and 8,808.48 is: 13,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,924.96 : 17,899.88 = 8,808.48 : x
  2. Step 2: Convert to fraction form
    11,924.96/17,899.88 = 8,808.48/x
  3. Step 3: Cross multiply
    11,924.96x = 17,899.88 × 8,808.48
  4. Step 4: Simplify right side
    11,924.96x = 157,670,734.98
  5. Step 5: Solve for x
    x = 157,670,734.98/11,924.96
  6. Step 6: Final answer
    x = 13,221.91

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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.