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Finding the Fourth Proportional to 36,755.88, 50,715.31 and 21,643.03

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Solution

The fourth proportional to 36,755.88, 50,715.31 and 21,643.03 is: 29,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,755.88 : 50,715.31 = 21,643.03 : x
  2. Step 2: Convert to fraction form
    36,755.88/50,715.31 = 21,643.03/x
  3. Step 3: Cross multiply
    36,755.88x = 50,715.31 × 21,643.03
  4. Step 4: Simplify right side
    36,755.88x = 1,097,632,975.79
  5. Step 5: Solve for x
    x = 1,097,632,975.79/36,755.88
  6. Step 6: Final answer
    x = 29,862.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.