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Finding the Fourth Proportional to 81,803.82, 122,705.58 and 22,639.32

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Solution

The fourth proportional to 81,803.82, 122,705.58 and 22,639.32 is: 33,958.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,803.82 : 122,705.58 = 22,639.32 : x
  2. Step 2: Convert to fraction form
    81,803.82/122,705.58 = 22,639.32/x
  3. Step 3: Cross multiply
    81,803.82x = 122,705.58 × 22,639.32
  4. Step 4: Simplify right side
    81,803.82x = 2,777,970,891.41
  5. Step 5: Solve for x
    x = 2,777,970,891.41/81,803.82
  6. Step 6: Final answer
    x = 33,958.94

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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.