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Finding the Fourth Proportional to 36,561.36, 54,842 and 8,859.36

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Solution

The fourth proportional to 36,561.36, 54,842 and 8,859.36 is: 13,289.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,561.36 : 54,842 = 8,859.36 : x
  2. Step 2: Convert to fraction form
    36,561.36/54,842 = 8,859.36/x
  3. Step 3: Cross multiply
    36,561.36x = 54,842 × 8,859.36
  4. Step 4: Simplify right side
    36,561.36x = 485,865,021.12
  5. Step 5: Solve for x
    x = 485,865,021.12/36,561.36
  6. Step 6: Final answer
    x = 13,289.03

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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.