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Finding the Fourth Proportional to 43,323.88, 64,837.94 and 36,311.80

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Solution

The fourth proportional to 43,323.88, 64,837.94 and 36,311.80 is: 54,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,323.88 : 64,837.94 = 36,311.80 : x
  2. Step 2: Convert to fraction form
    43,323.88/64,837.94 = 36,311.80/x
  3. Step 3: Cross multiply
    43,323.88x = 64,837.94 × 36,311.80
  4. Step 4: Simplify right side
    43,323.88x = 2,354,382,309.69
  5. Step 5: Solve for x
    x = 2,354,382,309.69/43,323.88
  6. Step 6: Final answer
    x = 54,343.75

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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.