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Finding the Fourth Proportional to 22,403.91, 33,620.96 and 9,256.22

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Solution

The fourth proportional to 22,403.91, 33,620.96 and 9,256.22 is: 13,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.91 : 33,620.96 = 9,256.22 : x
  2. Step 2: Convert to fraction form
    22,403.91/33,620.96 = 9,256.22/x
  3. Step 3: Cross multiply
    22,403.91x = 33,620.96 × 9,256.22
  4. Step 4: Simplify right side
    22,403.91x = 311,203,002.37
  5. Step 5: Solve for x
    x = 311,203,002.37/22,403.91
  6. Step 6: Final answer
    x = 13,890.57

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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.