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Finding the Fourth Proportional to 57,828.56, 79,794.60 and 32,668.88

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Solution

The fourth proportional to 57,828.56, 79,794.60 and 32,668.88 is: 45,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,828.56 : 79,794.60 = 32,668.88 : x
  2. Step 2: Convert to fraction form
    57,828.56/79,794.60 = 32,668.88/x
  3. Step 3: Cross multiply
    57,828.56x = 79,794.60 × 32,668.88
  4. Step 4: Simplify right side
    57,828.56x = 2,606,800,212.05
  5. Step 5: Solve for x
    x = 2,606,800,212.05/57,828.56
  6. Step 6: Final answer
    x = 45,078.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.