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Finding the Fourth Proportional to 3,556, 5,326.32 and 2,235.28

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Solution

The fourth proportional to 3,556, 5,326.32 and 2,235.28 is: 3,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556 : 5,326.32 = 2,235.28 : x
  2. Step 2: Convert to fraction form
    3,556/5,326.32 = 2,235.28/x
  3. Step 3: Cross multiply
    3,556x = 5,326.32 × 2,235.28
  4. Step 4: Simplify right side
    3,556x = 11,905,816.57
  5. Step 5: Solve for x
    x = 11,905,816.57/3,556
  6. Step 6: Final answer
    x = 3,348.09

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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.