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Finding the Fourth Proportional to 22,665.40, 33,930.90 and 16,847.80

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Solution

The fourth proportional to 22,665.40, 33,930.90 and 16,847.80 is: 25,221.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,665.40 : 33,930.90 = 16,847.80 : x
  2. Step 2: Convert to fraction form
    22,665.40/33,930.90 = 16,847.80/x
  3. Step 3: Cross multiply
    22,665.40x = 33,930.90 × 16,847.80
  4. Step 4: Simplify right side
    22,665.40x = 571,661,017.02
  5. Step 5: Solve for x
    x = 571,661,017.02/22,665.40
  6. Step 6: Final answer
    x = 25,221.75

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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.