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Finding the Fourth Proportional to 66,453.44, 91,705.44 and 36,645.44

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Solution

The fourth proportional to 66,453.44, 91,705.44 and 36,645.44 is: 50,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,453.44 : 91,705.44 = 36,645.44 : x
  2. Step 2: Convert to fraction form
    66,453.44/91,705.44 = 36,645.44/x
  3. Step 3: Cross multiply
    66,453.44x = 91,705.44 × 36,645.44
  4. Step 4: Simplify right side
    66,453.44x = 3,360,586,199.19
  5. Step 5: Solve for x
    x = 3,360,586,199.19/66,453.44
  6. Step 6: Final answer
    x = 50,570.54

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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.