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Finding the Fourth Proportional to 1,426.50, 1,969.16 and 1,033.44

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Solution

The fourth proportional to 1,426.50, 1,969.16 and 1,033.44 is: 1,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.50 : 1,969.16 = 1,033.44 : x
  2. Step 2: Convert to fraction form
    1,426.50/1,969.16 = 1,033.44/x
  3. Step 3: Cross multiply
    1,426.50x = 1,969.16 × 1,033.44
  4. Step 4: Simplify right side
    1,426.50x = 2,035,003.54
  5. Step 5: Solve for x
    x = 2,035,003.54/1,426.50
  6. Step 6: Final answer
    x = 1,426.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.