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Finding the Fourth Proportional to 76,608.36, 114,912.17 and 19,682.22

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Solution

The fourth proportional to 76,608.36, 114,912.17 and 19,682.22 is: 29,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608.36 : 114,912.17 = 19,682.22 : x
  2. Step 2: Convert to fraction form
    76,608.36/114,912.17 = 19,682.22/x
  3. Step 3: Cross multiply
    76,608.36x = 114,912.17 × 19,682.22
  4. Step 4: Simplify right side
    76,608.36x = 2,261,726,512.21
  5. Step 5: Solve for x
    x = 2,261,726,512.21/76,608.36
  6. Step 6: Final answer
    x = 29,523.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.