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Finding the Fourth Proportional to 66,448.93, 91,698.20 and 36,234.41

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Solution

The fourth proportional to 66,448.93, 91,698.20 and 36,234.41 is: 50,002.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448.93 : 91,698.20 = 36,234.41 : x
  2. Step 2: Convert to fraction form
    66,448.93/91,698.20 = 36,234.41/x
  3. Step 3: Cross multiply
    66,448.93x = 91,698.20 × 36,234.41
  4. Step 4: Simplify right side
    66,448.93x = 3,322,630,175.06
  5. Step 5: Solve for x
    x = 3,322,630,175.06/66,448.93
  6. Step 6: Final answer
    x = 50,002.76

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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.