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Finding the Fourth Proportional to 50,682.80, 76,040.40 and 17,424.20

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Solution

The fourth proportional to 50,682.80, 76,040.40 and 17,424.20 is: 26,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,682.80 : 76,040.40 = 17,424.20 : x
  2. Step 2: Convert to fraction form
    50,682.80/76,040.40 = 17,424.20/x
  3. Step 3: Cross multiply
    50,682.80x = 76,040.40 × 17,424.20
  4. Step 4: Simplify right side
    50,682.80x = 1,324,943,137.68
  5. Step 5: Solve for x
    x = 1,324,943,137.68/50,682.80
  6. Step 6: Final answer
    x = 26,141.87

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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.