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Finding the Fourth Proportional to 45,891.80, 68,751.30 and 23,629.40

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Solution

The fourth proportional to 45,891.80, 68,751.30 and 23,629.40 is: 35,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,891.80 : 68,751.30 = 23,629.40 : x
  2. Step 2: Convert to fraction form
    45,891.80/68,751.30 = 23,629.40/x
  3. Step 3: Cross multiply
    45,891.80x = 68,751.30 × 23,629.40
  4. Step 4: Simplify right side
    45,891.80x = 1,624,551,968.22
  5. Step 5: Solve for x
    x = 1,624,551,968.22/45,891.80
  6. Step 6: Final answer
    x = 35,399.61

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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.