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Finding the Third Proportional to 2,176.31 and 3,135.38

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Solution

The third proportional to 2,176.31 and 3,135.38 is: 4,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.31 : 3,135.38 = 3,135.38 : x
  2. Step 2: Convert to fraction form
    2,176.31/3,135.38 = 3,135.38/x
  3. Step 3: Cross multiply
    2,176.31x = 3,135.38 × 3,135.38
  4. Step 4: Simplify right side
    2,176.31x = 9,830,576.39
  5. Step 5: Solve for x
    x = 9,830,576.39/2,176.31
  6. Step 6: Final answer
    x = 4,517.08

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.