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Finding the Fourth Proportional to 66,127.56, 91,255.73 and 35,912.63

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Solution

The fourth proportional to 66,127.56, 91,255.73 and 35,912.63 is: 49,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,127.56 : 91,255.73 = 35,912.63 : x
  2. Step 2: Convert to fraction form
    66,127.56/91,255.73 = 35,912.63/x
  3. Step 3: Cross multiply
    66,127.56x = 91,255.73 × 35,912.63
  4. Step 4: Simplify right side
    66,127.56x = 3,277,233,517.45
  5. Step 5: Solve for x
    x = 3,277,233,517.45/66,127.56
  6. Step 6: Final answer
    x = 49,559.27

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1.5x scale

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.