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Finding the Fourth Proportional to 22,889.60, 34,353.60 and 11,212.80

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Solution

The fourth proportional to 22,889.60, 34,353.60 and 11,212.80 is: 16,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,889.60 : 34,353.60 = 11,212.80 : x
  2. Step 2: Convert to fraction form
    22,889.60/34,353.60 = 11,212.80/x
  3. Step 3: Cross multiply
    22,889.60x = 34,353.60 × 11,212.80
  4. Step 4: Simplify right side
    22,889.60x = 385,200,046.08
  5. Step 5: Solve for x
    x = 385,200,046.08/22,889.60
  6. Step 6: Final answer
    x = 16,828.61

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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.