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Finding the Fourth Proportional to 33,810.40, 50,715.60 and 16,271.20

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Solution

The fourth proportional to 33,810.40, 50,715.60 and 16,271.20 is: 24,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,810.40 : 50,715.60 = 16,271.20 : x
  2. Step 2: Convert to fraction form
    33,810.40/50,715.60 = 16,271.20/x
  3. Step 3: Cross multiply
    33,810.40x = 50,715.60 × 16,271.20
  4. Step 4: Simplify right side
    33,810.40x = 825,203,670.72
  5. Step 5: Solve for x
    x = 825,203,670.72/33,810.40
  6. Step 6: Final answer
    x = 24,406.80

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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.