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Finding the Fourth Proportional to 19,324.63, 28,995.20 and 8,236.54

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Solution

The fourth proportional to 19,324.63, 28,995.20 and 8,236.54 is: 12,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324.63 : 28,995.20 = 8,236.54 : x
  2. Step 2: Convert to fraction form
    19,324.63/28,995.20 = 8,236.54/x
  3. Step 3: Cross multiply
    19,324.63x = 28,995.20 × 8,236.54
  4. Step 4: Simplify right side
    19,324.63x = 238,820,150.56
  5. Step 5: Solve for x
    x = 238,820,150.56/19,324.63
  6. Step 6: Final answer
    x = 12,358.33

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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.