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Finding the Fourth Proportional to 23,213.20, 34,762.20 and 18,605.20

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Solution

The fourth proportional to 23,213.20, 34,762.20 and 18,605.20 is: 27,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,213.20 : 34,762.20 = 18,605.20 : x
  2. Step 2: Convert to fraction form
    23,213.20/34,762.20 = 18,605.20/x
  3. Step 3: Cross multiply
    23,213.20x = 34,762.20 × 18,605.20
  4. Step 4: Simplify right side
    23,213.20x = 646,757,683.44
  5. Step 5: Solve for x
    x = 646,757,683.44/23,213.20
  6. Step 6: Final answer
    x = 27,861.63

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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.