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Finding the Fourth Proportional to 18,608.63, 27,913.14 and 4,757.63

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Solution

The fourth proportional to 18,608.63, 27,913.14 and 4,757.63 is: 7,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.63 : 27,913.14 = 4,757.63 : x
  2. Step 2: Convert to fraction form
    18,608.63/27,913.14 = 4,757.63/x
  3. Step 3: Cross multiply
    18,608.63x = 27,913.14 × 4,757.63
  4. Step 4: Simplify right side
    18,608.63x = 132,800,252.69
  5. Step 5: Solve for x
    x = 132,800,252.69/18,608.63
  6. Step 6: Final answer
    x = 7,136.49

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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.