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Finding the Fourth Proportional to 48,591, 72,891 and 22,291.92

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Solution

The fourth proportional to 48,591, 72,891 and 22,291.92 is: 33,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,591 : 72,891 = 22,291.92 : x
  2. Step 2: Convert to fraction form
    48,591/72,891 = 22,291.92/x
  3. Step 3: Cross multiply
    48,591x = 72,891 × 22,291.92
  4. Step 4: Simplify right side
    48,591x = 1,624,880,340.72
  5. Step 5: Solve for x
    x = 1,624,880,340.72/48,591
  6. Step 6: Final answer
    x = 33,439.94

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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.