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Finding the Fourth Proportional to 66,954.26, 100,431.98 and 17,034.42

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Solution

The fourth proportional to 66,954.26, 100,431.98 and 17,034.42 is: 25,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,954.26 : 100,431.98 = 17,034.42 : x
  2. Step 2: Convert to fraction form
    66,954.26/100,431.98 = 17,034.42/x
  3. Step 3: Cross multiply
    66,954.26x = 100,431.98 × 17,034.42
  4. Step 4: Simplify right side
    66,954.26x = 1,710,800,528.75
  5. Step 5: Solve for x
    x = 1,710,800,528.75/66,954.26
  6. Step 6: Final answer
    x = 25,551.78

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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.