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Finding the Fourth Proportional to 22,375.78, 33,542.70 and 7,574.34

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Solution

The fourth proportional to 22,375.78, 33,542.70 and 7,574.34 is: 11,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.78 : 33,542.70 = 7,574.34 : x
  2. Step 2: Convert to fraction form
    22,375.78/33,542.70 = 7,574.34/x
  3. Step 3: Cross multiply
    22,375.78x = 33,542.70 × 7,574.34
  4. Step 4: Simplify right side
    22,375.78x = 254,063,814.32
  5. Step 5: Solve for x
    x = 254,063,814.32/22,375.78
  6. Step 6: Final answer
    x = 11,354.41

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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.