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Finding the Fourth Proportional to 19,324.44, 28,974.51 and 8,224.20

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Solution

The fourth proportional to 19,324.44, 28,974.51 and 8,224.20 is: 12,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324.44 : 28,974.51 = 8,224.20 : x
  2. Step 2: Convert to fraction form
    19,324.44/28,974.51 = 8,224.20/x
  3. Step 3: Cross multiply
    19,324.44x = 28,974.51 × 8,224.20
  4. Step 4: Simplify right side
    19,324.44x = 238,292,165.14
  5. Step 5: Solve for x
    x = 238,292,165.14/19,324.44
  6. Step 6: Final answer
    x = 12,331.13

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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.