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Finding the Fourth Proportional to 36,674.80, 55,020.47 and 19,807.44

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Solution

The fourth proportional to 36,674.80, 55,020.47 and 19,807.44 is: 29,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,674.80 : 55,020.47 = 19,807.44 : x
  2. Step 2: Convert to fraction form
    36,674.80/55,020.47 = 19,807.44/x
  3. Step 3: Cross multiply
    36,674.80x = 55,020.47 × 19,807.44
  4. Step 4: Simplify right side
    36,674.80x = 1,089,814,658.30
  5. Step 5: Solve for x
    x = 1,089,814,658.30/36,674.80
  6. Step 6: Final answer
    x = 29,715.63

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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.