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Finding the Fourth Proportional to 22,355.20, 33,532.80 and 19,892.80

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Solution

The fourth proportional to 22,355.20, 33,532.80 and 19,892.80 is: 29,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,355.20 : 33,532.80 = 19,892.80 : x
  2. Step 2: Convert to fraction form
    22,355.20/33,532.80 = 19,892.80/x
  3. Step 3: Cross multiply
    22,355.20x = 33,532.80 × 19,892.80
  4. Step 4: Simplify right side
    22,355.20x = 667,061,283.84
  5. Step 5: Solve for x
    x = 667,061,283.84/22,355.20
  6. Step 6: Final answer
    x = 29,839.20

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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.