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Finding the Third Proportional to 2,158.88 and 4,246.88

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Solution

The third proportional to 2,158.88 and 4,246.88 is: 8,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.88 : 4,246.88 = 4,246.88 : x
  2. Step 2: Convert to fraction form
    2,158.88/4,246.88 = 4,246.88/x
  3. Step 3: Cross multiply
    2,158.88x = 4,246.88 × 4,246.88
  4. Step 4: Simplify right side
    2,158.88x = 18,035,947.27
  5. Step 5: Solve for x
    x = 18,035,947.27/2,158.88
  6. Step 6: Final answer
    x = 8,354.33

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.