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Finding the Fourth Proportional to 53,668.88, 80,540.23 and 18,608.54

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Solution

The fourth proportional to 53,668.88, 80,540.23 and 18,608.54 is: 27,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,668.88 : 80,540.23 = 18,608.54 : x
  2. Step 2: Convert to fraction form
    53,668.88/80,540.23 = 18,608.54/x
  3. Step 3: Cross multiply
    53,668.88x = 80,540.23 × 18,608.54
  4. Step 4: Simplify right side
    53,668.88x = 1,498,735,595.82
  5. Step 5: Solve for x
    x = 1,498,735,595.82/53,668.88
  6. Step 6: Final answer
    x = 27,925.60

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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.