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Finding the Fourth Proportional to 66,093.36, 91,207.98 and 35,878.44

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Solution

The fourth proportional to 66,093.36, 91,207.98 and 35,878.44 is: 49,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,093.36 : 91,207.98 = 35,878.44 : x
  2. Step 2: Convert to fraction form
    66,093.36/91,207.98 = 35,878.44/x
  3. Step 3: Cross multiply
    66,093.36x = 91,207.98 × 35,878.44
  4. Step 4: Simplify right side
    66,093.36x = 3,272,400,037.95
  5. Step 5: Solve for x
    x = 3,272,400,037.95/66,093.36
  6. Step 6: Final answer
    x = 49,511.78

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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.