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Finding the Fourth Proportional to 22,290.67, 33,435.67 and 5,423.84

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Solution

The fourth proportional to 22,290.67, 33,435.67 and 5,423.84 is: 8,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.67 : 33,435.67 = 5,423.84 : x
  2. Step 2: Convert to fraction form
    22,290.67/33,435.67 = 5,423.84/x
  3. Step 3: Cross multiply
    22,290.67x = 33,435.67 × 5,423.84
  4. Step 4: Simplify right side
    22,290.67x = 181,349,724.37
  5. Step 5: Solve for x
    x = 181,349,724.37/22,290.67
  6. Step 6: Final answer
    x = 8,135.68

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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.