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Finding the Fourth Proportional to 66,794.19, 100,191.28 and 16,874.43

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Solution

The fourth proportional to 66,794.19, 100,191.28 and 16,874.43 is: 25,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,794.19 : 100,191.28 = 16,874.43 : x
  2. Step 2: Convert to fraction form
    66,794.19/100,191.28 = 16,874.43/x
  3. Step 3: Cross multiply
    66,794.19x = 100,191.28 × 16,874.43
  4. Step 4: Simplify right side
    66,794.19x = 1,690,670,318.12
  5. Step 5: Solve for x
    x = 1,690,670,318.12/66,794.19
  6. Step 6: Final answer
    x = 25,311.64

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1.5x scale

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.