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Finding the Fourth Proportional to 73,640.88, 110,461.32 and 18,236.88

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Solution

The fourth proportional to 73,640.88, 110,461.32 and 18,236.88 is: 27,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,640.88 : 110,461.32 = 18,236.88 : x
  2. Step 2: Convert to fraction form
    73,640.88/110,461.32 = 18,236.88/x
  3. Step 3: Cross multiply
    73,640.88x = 110,461.32 × 18,236.88
  4. Step 4: Simplify right side
    73,640.88x = 2,014,469,837.48
  5. Step 5: Solve for x
    x = 2,014,469,837.48/73,640.88
  6. Step 6: Final answer
    x = 27,355.32

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1.5x scale

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.