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Finding the Fourth Proportional to 22,665.60, 33,998.40 and 20,624.40

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Solution

The fourth proportional to 22,665.60, 33,998.40 and 20,624.40 is: 30,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,665.60 : 33,998.40 = 20,624.40 : x
  2. Step 2: Convert to fraction form
    22,665.60/33,998.40 = 20,624.40/x
  3. Step 3: Cross multiply
    22,665.60x = 33,998.40 × 20,624.40
  4. Step 4: Simplify right side
    22,665.60x = 701,196,600.96
  5. Step 5: Solve for x
    x = 701,196,600.96/22,665.60
  6. Step 6: Final answer
    x = 30,936.60

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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.