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Finding the Fourth Proportional to 66,914.73, 100,371.61 and 16,994.97

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Solution

The fourth proportional to 66,914.73, 100,371.61 and 16,994.97 is: 25,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,914.73 : 100,371.61 = 16,994.97 : x
  2. Step 2: Convert to fraction form
    66,914.73/100,371.61 = 16,994.97/x
  3. Step 3: Cross multiply
    66,914.73x = 100,371.61 × 16,994.97
  4. Step 4: Simplify right side
    66,914.73x = 1,705,812,500.80
  5. Step 5: Solve for x
    x = 1,705,812,500.80/66,914.73
  6. Step 6: Final answer
    x = 25,492.33

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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.