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Finding the Fourth Proportional to 3,603.74, 5,398.41 and 3,299.18

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Solution

The fourth proportional to 3,603.74, 5,398.41 and 3,299.18 is: 4,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.74 : 5,398.41 = 3,299.18 : x
  2. Step 2: Convert to fraction form
    3,603.74/5,398.41 = 3,299.18/x
  3. Step 3: Cross multiply
    3,603.74x = 5,398.41 × 3,299.18
  4. Step 4: Simplify right side
    3,603.74x = 17,810,326.30
  5. Step 5: Solve for x
    x = 17,810,326.30/3,603.74
  6. Step 6: Final answer
    x = 4,942.18

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1.5x scale

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.