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Finding the Fourth Proportional to 27,321.92, 40,992.65 and 10,693.88

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Solution

The fourth proportional to 27,321.92, 40,992.65 and 10,693.88 is: 16,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.92 : 40,992.65 = 10,693.88 : x
  2. Step 2: Convert to fraction form
    27,321.92/40,992.65 = 10,693.88/x
  3. Step 3: Cross multiply
    27,321.92x = 40,992.65 × 10,693.88
  4. Step 4: Simplify right side
    27,321.92x = 438,370,221.55
  5. Step 5: Solve for x
    x = 438,370,221.55/27,321.92
  6. Step 6: Final answer
    x = 16,044.64

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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.