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Finding the Fourth Proportional to 6,466.31, 8,924.48 and 3,949.87

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Solution

The fourth proportional to 6,466.31, 8,924.48 and 3,949.87 is: 5,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466.31 : 8,924.48 = 3,949.87 : x
  2. Step 2: Convert to fraction form
    6,466.31/8,924.48 = 3,949.87/x
  3. Step 3: Cross multiply
    6,466.31x = 8,924.48 × 3,949.87
  4. Step 4: Simplify right side
    6,466.31x = 35,250,550.40
  5. Step 5: Solve for x
    x = 35,250,550.40/6,466.31
  6. Step 6: Final answer
    x = 5,451.41

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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.