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Finding the Fourth Proportional to 22,561.92, 33,845.04 and 7,768.80

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Solution

The fourth proportional to 22,561.92, 33,845.04 and 7,768.80 is: 11,653.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.92 : 33,845.04 = 7,768.80 : x
  2. Step 2: Convert to fraction form
    22,561.92/33,845.04 = 7,768.80/x
  3. Step 3: Cross multiply
    22,561.92x = 33,845.04 × 7,768.80
  4. Step 4: Simplify right side
    22,561.92x = 262,935,346.75
  5. Step 5: Solve for x
    x = 262,935,346.75/22,561.92
  6. Step 6: Final answer
    x = 11,653.94

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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.