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Finding the Fourth Proportional to 6,331.71, 8,736.15 and 3,813.27

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Solution

The fourth proportional to 6,331.71, 8,736.15 and 3,813.27 is: 5,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.71 : 8,736.15 = 3,813.27 : x
  2. Step 2: Convert to fraction form
    6,331.71/8,736.15 = 3,813.27/x
  3. Step 3: Cross multiply
    6,331.71x = 8,736.15 × 3,813.27
  4. Step 4: Simplify right side
    6,331.71x = 33,313,298.71
  5. Step 5: Solve for x
    x = 33,313,298.71/6,331.71
  6. Step 6: Final answer
    x = 5,261.34

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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.