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Finding the Fourth Proportional to 36,172.40, 54,274.80 and 16,440.80

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Solution

The fourth proportional to 36,172.40, 54,274.80 and 16,440.80 is: 24,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,172.40 : 54,274.80 = 16,440.80 : x
  2. Step 2: Convert to fraction form
    36,172.40/54,274.80 = 16,440.80/x
  3. Step 3: Cross multiply
    36,172.40x = 54,274.80 × 16,440.80
  4. Step 4: Simplify right side
    36,172.40x = 892,321,131.84
  5. Step 5: Solve for x
    x = 892,321,131.84/36,172.40
  6. Step 6: Final answer
    x = 24,668.56

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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.