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Finding the Third Proportional to 2,385 and 5,031

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Solution

The third proportional to 2,385 and 5,031 is: 10,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385 : 5,031 = 5,031 : x
  2. Step 2: Convert to fraction form
    2,385/5,031 = 5,031/x
  3. Step 3: Cross multiply
    2,385x = 5,031 × 5,031
  4. Step 4: Simplify right side
    2,385x = 25,310,961
  5. Step 5: Solve for x
    x = 25,310,961/2,385
  6. Step 6: Final answer
    x = 10,612.56

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.