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Finding the Fourth Proportional to 36,608.16, 54,905.60 and 11,650.88

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Solution

The fourth proportional to 36,608.16, 54,905.60 and 11,650.88 is: 17,474.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,608.16 : 54,905.60 = 11,650.88 : x
  2. Step 2: Convert to fraction form
    36,608.16/54,905.60 = 11,650.88/x
  3. Step 3: Cross multiply
    36,608.16x = 54,905.60 × 11,650.88
  4. Step 4: Simplify right side
    36,608.16x = 639,698,556.93
  5. Step 5: Solve for x
    x = 639,698,556.93/36,608.16
  6. Step 6: Final answer
    x = 17,474.21

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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.