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Finding the Fourth Proportional to 66,940.66, 92,375.04 and 36,725.32

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Solution

The fourth proportional to 66,940.66, 92,375.04 and 36,725.32 is: 50,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.66 : 92,375.04 = 36,725.32 : x
  2. Step 2: Convert to fraction form
    66,940.66/92,375.04 = 36,725.32/x
  3. Step 3: Cross multiply
    66,940.66x = 92,375.04 × 36,725.32
  4. Step 4: Simplify right side
    66,940.66x = 3,392,502,904.01
  5. Step 5: Solve for x
    x = 3,392,502,904.01/66,940.66
  6. Step 6: Final answer
    x = 50,679.26

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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.