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Finding the Fourth Proportional to 45,783.66, 68,719.89 and 22,107.94

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Solution

The fourth proportional to 45,783.66, 68,719.89 and 22,107.94 is: 33,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.66 : 68,719.89 = 22,107.94 : x
  2. Step 2: Convert to fraction form
    45,783.66/68,719.89 = 22,107.94/x
  3. Step 3: Cross multiply
    45,783.66x = 68,719.89 × 22,107.94
  4. Step 4: Simplify right side
    45,783.66x = 1,519,255,116.03
  5. Step 5: Solve for x
    x = 1,519,255,116.03/45,783.66
  6. Step 6: Final answer
    x = 33,183.35

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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.