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Finding the Fourth Proportional to 66,993.75, 92,451.38 and 37,185.75

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Solution

The fourth proportional to 66,993.75, 92,451.38 and 37,185.75 is: 51,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,993.75 : 92,451.38 = 37,185.75 : x
  2. Step 2: Convert to fraction form
    66,993.75/92,451.38 = 37,185.75/x
  3. Step 3: Cross multiply
    66,993.75x = 92,451.38 × 37,185.75
  4. Step 4: Simplify right side
    66,993.75x = 3,437,873,717.91
  5. Step 5: Solve for x
    x = 3,437,873,717.91/66,993.75
  6. Step 6: Final answer
    x = 51,316.34

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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.