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Finding the Fourth Proportional to 22,662.60, 33,994.44 and 8,620.80

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Solution

The fourth proportional to 22,662.60, 33,994.44 and 8,620.80 is: 12,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.60 : 33,994.44 = 8,620.80 : x
  2. Step 2: Convert to fraction form
    22,662.60/33,994.44 = 8,620.80/x
  3. Step 3: Cross multiply
    22,662.60x = 33,994.44 × 8,620.80
  4. Step 4: Simplify right side
    22,662.60x = 293,059,268.35
  5. Step 5: Solve for x
    x = 293,059,268.35/22,662.60
  6. Step 6: Final answer
    x = 12,931.41

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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.