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Finding the Fourth Proportional to 64,867.95, 89,517.60 and 36,573.43

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Solution

The fourth proportional to 64,867.95, 89,517.60 and 36,573.43 is: 50,471.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,867.95 : 89,517.60 = 36,573.43 : x
  2. Step 2: Convert to fraction form
    64,867.95/89,517.60 = 36,573.43/x
  3. Step 3: Cross multiply
    64,867.95x = 89,517.60 × 36,573.43
  4. Step 4: Simplify right side
    64,867.95x = 3,273,965,677.37
  5. Step 5: Solve for x
    x = 3,273,965,677.37/64,867.95
  6. Step 6: Final answer
    x = 50,471.24

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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.