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Finding the Fourth Proportional to 67,052.54, 100,597.64 and 19,668.75

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Solution

The fourth proportional to 67,052.54, 100,597.64 and 19,668.75 is: 29,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,052.54 : 100,597.64 = 19,668.75 : x
  2. Step 2: Convert to fraction form
    67,052.54/100,597.64 = 19,668.75/x
  3. Step 3: Cross multiply
    67,052.54x = 100,597.64 × 19,668.75
  4. Step 4: Simplify right side
    67,052.54x = 1,978,629,733.41
  5. Step 5: Solve for x
    x = 1,978,629,733.41/67,052.54
  6. Step 6: Final answer
    x = 29,508.65

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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.