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Finding the Fourth Proportional to 22,136.40, 33,108.60 and 19,813.20

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Solution

The fourth proportional to 22,136.40, 33,108.60 and 19,813.20 is: 29,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.40 : 33,108.60 = 19,813.20 : x
  2. Step 2: Convert to fraction form
    22,136.40/33,108.60 = 19,813.20/x
  3. Step 3: Cross multiply
    22,136.40x = 33,108.60 × 19,813.20
  4. Step 4: Simplify right side
    22,136.40x = 655,987,313.52
  5. Step 5: Solve for x
    x = 655,987,313.52/22,136.40
  6. Step 6: Final answer
    x = 29,633.88

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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.