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Finding the Fourth Proportional to 35,481.97, 53,238.68 and 18,837.99

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Solution

The fourth proportional to 35,481.97, 53,238.68 and 18,837.99 is: 28,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,481.97 : 53,238.68 = 18,837.99 : x
  2. Step 2: Convert to fraction form
    35,481.97/53,238.68 = 18,837.99/x
  3. Step 3: Cross multiply
    35,481.97x = 53,238.68 × 18,837.99
  4. Step 4: Simplify right side
    35,481.97x = 1,002,909,721.45
  5. Step 5: Solve for x
    x = 1,002,909,721.45/35,481.97
  6. Step 6: Final answer
    x = 28,265.33

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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.