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Finding the Third Proportional to 2,615.19 and 4,006.31

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Solution

The third proportional to 2,615.19 and 4,006.31 is: 6,137.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.19 : 4,006.31 = 4,006.31 : x
  2. Step 2: Convert to fraction form
    2,615.19/4,006.31 = 4,006.31/x
  3. Step 3: Cross multiply
    2,615.19x = 4,006.31 × 4,006.31
  4. Step 4: Simplify right side
    2,615.19x = 16,050,539.85
  5. Step 5: Solve for x
    x = 16,050,539.85/2,615.19
  6. Step 6: Final answer
    x = 6,137.43

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.