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Finding the Fourth Proportional to 51,287.94, 76,946.04 and 18,003.62

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Solution

The fourth proportional to 51,287.94, 76,946.04 and 18,003.62 is: 27,010.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,287.94 : 76,946.04 = 18,003.62 : x
  2. Step 2: Convert to fraction form
    51,287.94/76,946.04 = 18,003.62/x
  3. Step 3: Cross multiply
    51,287.94x = 76,946.04 × 18,003.62
  4. Step 4: Simplify right side
    51,287.94x = 1,385,306,879.93
  5. Step 5: Solve for x
    x = 1,385,306,879.93/51,287.94
  6. Step 6: Final answer
    x = 27,010.38

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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.