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Finding the Fourth Proportional to 2,433.52, 3,649.92 and 789.88

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Solution

The fourth proportional to 2,433.52, 3,649.92 and 789.88 is: 1,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,433.52 : 3,649.92 = 789.88 : x
  2. Step 2: Convert to fraction form
    2,433.52/3,649.92 = 789.88/x
  3. Step 3: Cross multiply
    2,433.52x = 3,649.92 × 789.88
  4. Step 4: Simplify right side
    2,433.52x = 2,882,998.81
  5. Step 5: Solve for x
    x = 2,882,998.81/2,433.52
  6. Step 6: Final answer
    x = 1,184.70

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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.