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Finding the Fourth Proportional to 5,299.83, 7,945.17 and 2,015.28

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Solution

The fourth proportional to 5,299.83, 7,945.17 and 2,015.28 is: 3,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.83 : 7,945.17 = 2,015.28 : x
  2. Step 2: Convert to fraction form
    5,299.83/7,945.17 = 2,015.28/x
  3. Step 3: Cross multiply
    5,299.83x = 7,945.17 × 2,015.28
  4. Step 4: Simplify right side
    5,299.83x = 16,011,742.20
  5. Step 5: Solve for x
    x = 16,011,742.20/5,299.83
  6. Step 6: Final answer
    x = 3,021.18

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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.