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Finding the Fourth Proportional to 49,879.72, 68,840.58 and 34,762.60

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Solution

The fourth proportional to 49,879.72, 68,840.58 and 34,762.60 is: 47,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,879.72 : 68,840.58 = 34,762.60 : x
  2. Step 2: Convert to fraction form
    49,879.72/68,840.58 = 34,762.60/x
  3. Step 3: Cross multiply
    49,879.72x = 68,840.58 × 34,762.60
  4. Step 4: Simplify right side
    49,879.72x = 2,393,077,546.31
  5. Step 5: Solve for x
    x = 2,393,077,546.31/49,879.72
  6. Step 6: Final answer
    x = 47,976.96

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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.