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Finding the Fourth Proportional to 65,090.94, 89,824.32 and 36,796.68

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Solution

The fourth proportional to 65,090.94, 89,824.32 and 36,796.68 is: 50,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,090.94 : 89,824.32 = 36,796.68 : x
  2. Step 2: Convert to fraction form
    65,090.94/89,824.32 = 36,796.68/x
  3. Step 3: Cross multiply
    65,090.94x = 89,824.32 × 36,796.68
  4. Step 4: Simplify right side
    65,090.94x = 3,305,236,759.26
  5. Step 5: Solve for x
    x = 3,305,236,759.26/65,090.94
  6. Step 6: Final answer
    x = 50,778.75

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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.