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Finding the Third Proportional to 35,031 and 75,405

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Solution

The third proportional to 35,031 and 75,405 is: 162,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,031 : 75,405 = 75,405 : x
  2. Step 2: Convert to fraction form
    35,031/75,405 = 75,405/x
  3. Step 3: Cross multiply
    35,031x = 75,405 × 75,405
  4. Step 4: Simplify right side
    35,031x = 5,685,914,025
  5. Step 5: Solve for x
    x = 5,685,914,025/35,031
  6. Step 6: Final answer
    x = 162,310.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.