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Finding the Fourth Proportional to 37,558.89, 51,831.27 and 20,791.89

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Solution

The fourth proportional to 37,558.89, 51,831.27 and 20,791.89 is: 28,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,558.89 : 51,831.27 = 20,791.89 : x
  2. Step 2: Convert to fraction form
    37,558.89/51,831.27 = 20,791.89/x
  3. Step 3: Cross multiply
    37,558.89x = 51,831.27 × 20,791.89
  4. Step 4: Simplify right side
    37,558.89x = 1,077,670,064.40
  5. Step 5: Solve for x
    x = 1,077,670,064.40/37,558.89
  6. Step 6: Final answer
    x = 28,692.81

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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.