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Finding the Fourth Proportional to 66,012.45, 91,097.21 and 35,797.77

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Solution

The fourth proportional to 66,012.45, 91,097.21 and 35,797.77 is: 49,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,012.45 : 91,097.21 = 35,797.77 : x
  2. Step 2: Convert to fraction form
    66,012.45/91,097.21 = 35,797.77/x
  3. Step 3: Cross multiply
    66,012.45x = 91,097.21 × 35,797.77
  4. Step 4: Simplify right side
    66,012.45x = 3,261,076,336.75
  5. Step 5: Solve for x
    x = 3,261,076,336.75/66,012.45
  6. Step 6: Final answer
    x = 49,400.93

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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.