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Finding the Fourth Proportional to 48,885, 73,327.50 and 17,720.28

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Solution

The fourth proportional to 48,885, 73,327.50 and 17,720.28 is: 26,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,885 : 73,327.50 = 17,720.28 : x
  2. Step 2: Convert to fraction form
    48,885/73,327.50 = 17,720.28/x
  3. Step 3: Cross multiply
    48,885x = 73,327.50 × 17,720.28
  4. Step 4: Simplify right side
    48,885x = 1,299,383,831.70
  5. Step 5: Solve for x
    x = 1,299,383,831.70/48,885
  6. Step 6: Final answer
    x = 26,580.42

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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.