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Finding the Fourth Proportional to 48,221.78, 72,321.73 and 17,057.03

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Solution

The fourth proportional to 48,221.78, 72,321.73 and 17,057.03 is: 25,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,221.78 : 72,321.73 = 17,057.03 : x
  2. Step 2: Convert to fraction form
    48,221.78/72,321.73 = 17,057.03/x
  3. Step 3: Cross multiply
    48,221.78x = 72,321.73 × 17,057.03
  4. Step 4: Simplify right side
    48,221.78x = 1,233,593,918.26
  5. Step 5: Solve for x
    x = 1,233,593,918.26/48,221.78
  6. Step 6: Final answer
    x = 25,581.68

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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.