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Finding the Fourth Proportional to 22,191, 33,195.28 and 20,244.52

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Solution

The fourth proportional to 22,191, 33,195.28 and 20,244.52 is: 30,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191 : 33,195.28 = 20,244.52 : x
  2. Step 2: Convert to fraction form
    22,191/33,195.28 = 20,244.52/x
  3. Step 3: Cross multiply
    22,191x = 33,195.28 × 20,244.52
  4. Step 4: Simplify right side
    22,191x = 672,022,509.87
  5. Step 5: Solve for x
    x = 672,022,509.87/22,191
  6. Step 6: Final answer
    x = 30,283.56

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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.