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Finding the Fourth Proportional to 62,630.37, 86,379.71 and 55,060.65

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Solution

The fourth proportional to 62,630.37, 86,379.71 and 55,060.65 is: 75,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,630.37 : 86,379.71 = 55,060.65 : x
  2. Step 2: Convert to fraction form
    62,630.37/86,379.71 = 55,060.65/x
  3. Step 3: Cross multiply
    62,630.37x = 86,379.71 × 55,060.65
  4. Step 4: Simplify right side
    62,630.37x = 4,756,122,704.11
  5. Step 5: Solve for x
    x = 4,756,122,704.11/62,630.37
  6. Step 6: Final answer
    x = 75,939.56

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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.