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Finding the Fourth Proportional to 3,324.56, 4,980.28 and 1,859.24

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Solution

The fourth proportional to 3,324.56, 4,980.28 and 1,859.24 is: 2,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.56 : 4,980.28 = 1,859.24 : x
  2. Step 2: Convert to fraction form
    3,324.56/4,980.28 = 1,859.24/x
  3. Step 3: Cross multiply
    3,324.56x = 4,980.28 × 1,859.24
  4. Step 4: Simplify right side
    3,324.56x = 9,259,535.79
  5. Step 5: Solve for x
    x = 9,259,535.79/3,324.56
  6. Step 6: Final answer
    x = 2,785.19

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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.