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Finding the Third Proportional to 2,635.88 and 4,113.56

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Solution

The third proportional to 2,635.88 and 4,113.56 is: 6,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.88 : 4,113.56 = 4,113.56 : x
  2. Step 2: Convert to fraction form
    2,635.88/4,113.56 = 4,113.56/x
  3. Step 3: Cross multiply
    2,635.88x = 4,113.56 × 4,113.56
  4. Step 4: Simplify right side
    2,635.88x = 16,921,396.44
  5. Step 5: Solve for x
    x = 16,921,396.44/2,635.88
  6. Step 6: Final answer
    x = 6,419.65

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.