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Finding the Fourth Proportional to 38,379.64, 57,532.52 and 19,668.52

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Solution

The fourth proportional to 38,379.64, 57,532.52 and 19,668.52 is: 29,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.64 : 57,532.52 = 19,668.52 : x
  2. Step 2: Convert to fraction form
    38,379.64/57,532.52 = 19,668.52/x
  3. Step 3: Cross multiply
    38,379.64x = 57,532.52 × 19,668.52
  4. Step 4: Simplify right side
    38,379.64x = 1,131,579,520.27
  5. Step 5: Solve for x
    x = 1,131,579,520.27/38,379.64
  6. Step 6: Final answer
    x = 29,483.85

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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.