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Finding the Fourth Proportional to 2,235.24, 3,353.04 and 936

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Solution

The fourth proportional to 2,235.24, 3,353.04 and 936 is: 1,404.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.24 : 3,353.04 = 936 : x
  2. Step 2: Convert to fraction form
    2,235.24/3,353.04 = 936/x
  3. Step 3: Cross multiply
    2,235.24x = 3,353.04 × 936
  4. Step 4: Simplify right side
    2,235.24x = 3,138,445.44
  5. Step 5: Solve for x
    x = 3,138,445.44/2,235.24
  6. Step 6: Final answer
    x = 1,404.08

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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.