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Finding the Third Proportional to 1,960 and 2,992

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Solution

The third proportional to 1,960 and 2,992 is: 4,567.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960 : 2,992 = 2,992 : x
  2. Step 2: Convert to fraction form
    1,960/2,992 = 2,992/x
  3. Step 3: Cross multiply
    1,960x = 2,992 × 2,992
  4. Step 4: Simplify right side
    1,960x = 8,952,064
  5. Step 5: Solve for x
    x = 8,952,064/1,960
  6. Step 6: Final answer
    x = 4,567.38

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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.