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Finding the Fourth Proportional to 64,741.59, 89,343.21 and 36,447.33

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Solution

The fourth proportional to 64,741.59, 89,343.21 and 36,447.33 is: 50,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,741.59 : 89,343.21 = 36,447.33 : x
  2. Step 2: Convert to fraction form
    64,741.59/89,343.21 = 36,447.33/x
  3. Step 3: Cross multiply
    64,741.59x = 89,343.21 × 36,447.33
  4. Step 4: Simplify right side
    64,741.59x = 3,256,321,458.13
  5. Step 5: Solve for x
    x = 3,256,321,458.13/64,741.59
  6. Step 6: Final answer
    x = 50,297.21

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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.