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Finding the Fourth Proportional to 50,983.40, 76,485.90 and 15,441.80

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Solution

The fourth proportional to 50,983.40, 76,485.90 and 15,441.80 is: 23,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,983.40 : 76,485.90 = 15,441.80 : x
  2. Step 2: Convert to fraction form
    50,983.40/76,485.90 = 15,441.80/x
  3. Step 3: Cross multiply
    50,983.40x = 76,485.90 × 15,441.80
  4. Step 4: Simplify right side
    50,983.40x = 1,181,079,970.62
  5. Step 5: Solve for x
    x = 1,181,079,970.62/50,983.40
  6. Step 6: Final answer
    x = 23,165.97

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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.