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Finding the Fourth Proportional to 43,796.84, 65,694.78 and 12,631.08

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Solution

The fourth proportional to 43,796.84, 65,694.78 and 12,631.08 is: 18,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,796.84 : 65,694.78 = 12,631.08 : x
  2. Step 2: Convert to fraction form
    43,796.84/65,694.78 = 12,631.08/x
  3. Step 3: Cross multiply
    43,796.84x = 65,694.78 × 12,631.08
  4. Step 4: Simplify right side
    43,796.84x = 829,796,021.76
  5. Step 5: Solve for x
    x = 829,796,021.76/43,796.84
  6. Step 6: Final answer
    x = 18,946.48

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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.