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Finding the Fourth Proportional to 6,323.27, 8,721.88 and 3,963.74

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Solution

The fourth proportional to 6,323.27, 8,721.88 and 3,963.74 is: 5,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,323.27 : 8,721.88 = 3,963.74 : x
  2. Step 2: Convert to fraction form
    6,323.27/8,721.88 = 3,963.74/x
  3. Step 3: Cross multiply
    6,323.27x = 8,721.88 × 3,963.74
  4. Step 4: Simplify right side
    6,323.27x = 34,571,211.11
  5. Step 5: Solve for x
    x = 34,571,211.11/6,323.27
  6. Step 6: Final answer
    x = 5,467.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.