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Finding the Fourth Proportional to 54,076.86, 74,630.43 and 29,879.94

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Solution

The fourth proportional to 54,076.86, 74,630.43 and 29,879.94 is: 41,236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,076.86 : 74,630.43 = 29,879.94 : x
  2. Step 2: Convert to fraction form
    54,076.86/74,630.43 = 29,879.94/x
  3. Step 3: Cross multiply
    54,076.86x = 74,630.43 × 29,879.94
  4. Step 4: Simplify right side
    54,076.86x = 2,229,952,770.57
  5. Step 5: Solve for x
    x = 2,229,952,770.57/54,076.86
  6. Step 6: Final answer
    x = 41,236.73

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1.5x scale

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.