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Finding the Third Proportional to 2,142 and 4,935

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Solution

The third proportional to 2,142 and 4,935 is: 11,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142 : 4,935 = 4,935 : x
  2. Step 2: Convert to fraction form
    2,142/4,935 = 4,935/x
  3. Step 3: Cross multiply
    2,142x = 4,935 × 4,935
  4. Step 4: Simplify right side
    2,142x = 24,354,225
  5. Step 5: Solve for x
    x = 24,354,225/2,142
  6. Step 6: Final answer
    x = 11,369.85

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.