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Finding the Fourth Proportional to 8,450.10, 11,662.17 and 4,913.31

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Solution

The fourth proportional to 8,450.10, 11,662.17 and 4,913.31 is: 6,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.10 : 11,662.17 = 4,913.31 : x
  2. Step 2: Convert to fraction form
    8,450.10/11,662.17 = 4,913.31/x
  3. Step 3: Cross multiply
    8,450.10x = 11,662.17 × 4,913.31
  4. Step 4: Simplify right side
    8,450.10x = 57,299,856.48
  5. Step 5: Solve for x
    x = 57,299,856.48/8,450.10
  6. Step 6: Final answer
    x = 6,780.97

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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.