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Finding the Fourth Proportional to 53,448.48, 80,171.88 and 18,388.44

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Solution

The fourth proportional to 53,448.48, 80,171.88 and 18,388.44 is: 27,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,448.48 : 80,171.88 = 18,388.44 : x
  2. Step 2: Convert to fraction form
    53,448.48/80,171.88 = 18,388.44/x
  3. Step 3: Cross multiply
    53,448.48x = 80,171.88 × 18,388.44
  4. Step 4: Simplify right side
    53,448.48x = 1,474,235,805.07
  5. Step 5: Solve for x
    x = 1,474,235,805.07/53,448.48
  6. Step 6: Final answer
    x = 27,582.37

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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.