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Finding the Fourth Proportional to 3,272.36, 4,907.82 and 963.32

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Solution

The fourth proportional to 3,272.36, 4,907.82 and 963.32 is: 1,444.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.36 : 4,907.82 = 963.32 : x
  2. Step 2: Convert to fraction form
    3,272.36/4,907.82 = 963.32/x
  3. Step 3: Cross multiply
    3,272.36x = 4,907.82 × 963.32
  4. Step 4: Simplify right side
    3,272.36x = 4,727,801.16
  5. Step 5: Solve for x
    x = 4,727,801.16/3,272.36
  6. Step 6: Final answer
    x = 1,444.77

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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.