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Finding the Fourth Proportional to 5,324.48, 7,983.57 and 1,813.22

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Solution

The fourth proportional to 5,324.48, 7,983.57 and 1,813.22 is: 2,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.48 : 7,983.57 = 1,813.22 : x
  2. Step 2: Convert to fraction form
    5,324.48/7,983.57 = 1,813.22/x
  3. Step 3: Cross multiply
    5,324.48x = 7,983.57 × 1,813.22
  4. Step 4: Simplify right side
    5,324.48x = 14,475,968.80
  5. Step 5: Solve for x
    x = 14,475,968.80/5,324.48
  6. Step 6: Final answer
    x = 2,718.76

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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.