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Finding the Fourth Proportional to 22,509.78, 33,785.85 and 11,424.42

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Solution

The fourth proportional to 22,509.78, 33,785.85 and 11,424.42 is: 17,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,509.78 : 33,785.85 = 11,424.42 : x
  2. Step 2: Convert to fraction form
    22,509.78/33,785.85 = 11,424.42/x
  3. Step 3: Cross multiply
    22,509.78x = 33,785.85 × 11,424.42
  4. Step 4: Simplify right side
    22,509.78x = 385,983,910.00
  5. Step 5: Solve for x
    x = 385,983,910.00/22,509.78
  6. Step 6: Final answer
    x = 17,147.39

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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.