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Finding the Fourth Proportional to 22,245.12, 33,368.63 and 6,662.88

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Solution

The fourth proportional to 22,245.12, 33,368.63 and 6,662.88 is: 9,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.12 : 33,368.63 = 6,662.88 : x
  2. Step 2: Convert to fraction form
    22,245.12/33,368.63 = 6,662.88/x
  3. Step 3: Cross multiply
    22,245.12x = 33,368.63 × 6,662.88
  4. Step 4: Simplify right side
    22,245.12x = 222,331,144.14
  5. Step 5: Solve for x
    x = 222,331,144.14/22,245.12
  6. Step 6: Final answer
    x = 9,994.60

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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.