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Finding the Fourth Proportional to 5,393.08, 7,443.66 and 3,529

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Solution

The fourth proportional to 5,393.08, 7,443.66 and 3,529 is: 4,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.08 : 7,443.66 = 3,529 : x
  2. Step 2: Convert to fraction form
    5,393.08/7,443.66 = 3,529/x
  3. Step 3: Cross multiply
    5,393.08x = 7,443.66 × 3,529
  4. Step 4: Simplify right side
    5,393.08x = 26,268,676.14
  5. Step 5: Solve for x
    x = 26,268,676.14/5,393.08
  6. Step 6: Final answer
    x = 4,870.81

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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.