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Finding the Fourth Proportional to 36,581.80, 54,880.80 and 16,855.60

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Solution

The fourth proportional to 36,581.80, 54,880.80 and 16,855.60 is: 25,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,581.80 : 54,880.80 = 16,855.60 : x
  2. Step 2: Convert to fraction form
    36,581.80/54,880.80 = 16,855.60/x
  3. Step 3: Cross multiply
    36,581.80x = 54,880.80 × 16,855.60
  4. Step 4: Simplify right side
    36,581.80x = 925,048,812.48
  5. Step 5: Solve for x
    x = 925,048,812.48/36,581.80
  6. Step 6: Final answer
    x = 25,287.13

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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.