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Finding the Fourth Proportional to 18,880.44, 28,324.44 and 10,572.27

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Solution

The fourth proportional to 18,880.44, 28,324.44 and 10,572.27 is: 15,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.44 : 28,324.44 = 10,572.27 : x
  2. Step 2: Convert to fraction form
    18,880.44/28,324.44 = 10,572.27/x
  3. Step 3: Cross multiply
    18,880.44x = 28,324.44 × 10,572.27
  4. Step 4: Simplify right side
    18,880.44x = 299,453,627.28
  5. Step 5: Solve for x
    x = 299,453,627.28/18,880.44
  6. Step 6: Final answer
    x = 15,860.52

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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.