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Finding the Fourth Proportional to 3,596.52, 5,394.80 and 1,405.88

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Solution

The fourth proportional to 3,596.52, 5,394.80 and 1,405.88 is: 2,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.52 : 5,394.80 = 1,405.88 : x
  2. Step 2: Convert to fraction form
    3,596.52/5,394.80 = 1,405.88/x
  3. Step 3: Cross multiply
    3,596.52x = 5,394.80 × 1,405.88
  4. Step 4: Simplify right side
    3,596.52x = 7,584,441.42
  5. Step 5: Solve for x
    x = 7,584,441.42/3,596.52
  6. Step 6: Final answer
    x = 2,108.83

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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.