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Finding the Fourth Proportional to 18,753, 25,879.62 and 11,301.48

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Solution

The fourth proportional to 18,753, 25,879.62 and 11,301.48 is: 15,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753 : 25,879.62 = 11,301.48 : x
  2. Step 2: Convert to fraction form
    18,753/25,879.62 = 11,301.48/x
  3. Step 3: Cross multiply
    18,753x = 25,879.62 × 11,301.48
  4. Step 4: Simplify right side
    18,753x = 292,478,007.84
  5. Step 5: Solve for x
    x = 292,478,007.84/18,753
  6. Step 6: Final answer
    x = 15,596.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.