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Finding the Fourth Proportional to 61,213.88, 91,821.63 and 34,887.26

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Solution

The fourth proportional to 61,213.88, 91,821.63 and 34,887.26 is: 52,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,213.88 : 91,821.63 = 34,887.26 : x
  2. Step 2: Convert to fraction form
    61,213.88/91,821.63 = 34,887.26/x
  3. Step 3: Cross multiply
    61,213.88x = 91,821.63 × 34,887.26
  4. Step 4: Simplify right side
    61,213.88x = 3,203,405,079.43
  5. Step 5: Solve for x
    x = 3,203,405,079.43/61,213.88
  6. Step 6: Final answer
    x = 52,331.35

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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.