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Finding the Fourth Proportional to 64,879.44, 89,518.29 and 36,579.66

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Solution

The fourth proportional to 64,879.44, 89,518.29 and 36,579.66 is: 50,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.44 : 89,518.29 = 36,579.66 : x
  2. Step 2: Convert to fraction form
    64,879.44/89,518.29 = 36,579.66/x
  3. Step 3: Cross multiply
    64,879.44x = 89,518.29 × 36,579.66
  4. Step 4: Simplify right side
    64,879.44x = 3,274,548,611.98
  5. Step 5: Solve for x
    x = 3,274,548,611.98/64,879.44
  6. Step 6: Final answer
    x = 50,471.28

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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.