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Finding the Fourth Proportional to 66,467.75, 91,725.50 and 36,659.75

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Solution

The fourth proportional to 66,467.75, 91,725.50 and 36,659.75 is: 50,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.75 : 91,725.50 = 36,659.75 : x
  2. Step 2: Convert to fraction form
    66,467.75/91,725.50 = 36,659.75/x
  3. Step 3: Cross multiply
    66,467.75x = 91,725.50 × 36,659.75
  4. Step 4: Simplify right side
    66,467.75x = 3,362,633,715.33
  5. Step 5: Solve for x
    x = 3,362,633,715.33/66,467.75
  6. Step 6: Final answer
    x = 50,590.46

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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.