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Finding the Fourth Proportional to 38,694.25, 58,044.75 and 10,992.25

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Solution

The fourth proportional to 38,694.25, 58,044.75 and 10,992.25 is: 16,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,694.25 : 58,044.75 = 10,992.25 : x
  2. Step 2: Convert to fraction form
    38,694.25/58,044.75 = 10,992.25/x
  3. Step 3: Cross multiply
    38,694.25x = 58,044.75 × 10,992.25
  4. Step 4: Simplify right side
    38,694.25x = 638,042,403.19
  5. Step 5: Solve for x
    x = 638,042,403.19/38,694.25
  6. Step 6: Final answer
    x = 16,489.33

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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.