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Finding the Fourth Proportional to 3,559.43, 5,339.25 and 962.39

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Solution

The fourth proportional to 3,559.43, 5,339.25 and 962.39 is: 1,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.43 : 5,339.25 = 962.39 : x
  2. Step 2: Convert to fraction form
    3,559.43/5,339.25 = 962.39/x
  3. Step 3: Cross multiply
    3,559.43x = 5,339.25 × 962.39
  4. Step 4: Simplify right side
    3,559.43x = 5,138,440.81
  5. Step 5: Solve for x
    x = 5,138,440.81/3,559.43
  6. Step 6: Final answer
    x = 1,443.61

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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.