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Finding the Fourth Proportional to 64,739.67, 89,342.42 and 36,446.37

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Solution

The fourth proportional to 64,739.67, 89,342.42 and 36,446.37 is: 50,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,739.67 : 89,342.42 = 36,446.37 : x
  2. Step 2: Convert to fraction form
    64,739.67/89,342.42 = 36,446.37/x
  3. Step 3: Cross multiply
    64,739.67x = 89,342.42 × 36,446.37
  4. Step 4: Simplify right side
    64,739.67x = 3,256,206,713.78
  5. Step 5: Solve for x
    x = 3,256,206,713.78/64,739.67
  6. Step 6: Final answer
    x = 50,296.93

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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.