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Finding the Fourth Proportional to 66,305.94, 91,504.50 and 36,093.74

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Solution

The fourth proportional to 66,305.94, 91,504.50 and 36,093.74 is: 49,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305.94 : 91,504.50 = 36,093.74 : x
  2. Step 2: Convert to fraction form
    66,305.94/91,504.50 = 36,093.74/x
  3. Step 3: Cross multiply
    66,305.94x = 91,504.50 × 36,093.74
  4. Step 4: Simplify right side
    66,305.94x = 3,302,739,631.83
  5. Step 5: Solve for x
    x = 3,302,739,631.83/66,305.94
  6. Step 6: Final answer
    x = 49,810.61

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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.