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Finding the Fourth Proportional to 66,604.50, 91,914.21 and 36,796.50

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Solution

The fourth proportional to 66,604.50, 91,914.21 and 36,796.50 is: 50,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604.50 : 91,914.21 = 36,796.50 : x
  2. Step 2: Convert to fraction form
    66,604.50/91,914.21 = 36,796.50/x
  3. Step 3: Cross multiply
    66,604.50x = 91,914.21 × 36,796.50
  4. Step 4: Simplify right side
    66,604.50x = 3,382,121,228.27
  5. Step 5: Solve for x
    x = 3,382,121,228.27/66,604.50
  6. Step 6: Final answer
    x = 50,779.17

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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.