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Finding the Third Proportional to 1,960 and 5,288

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Solution

The third proportional to 1,960 and 5,288 is: 14,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960 : 5,288 = 5,288 : x
  2. Step 2: Convert to fraction form
    1,960/5,288 = 5,288/x
  3. Step 3: Cross multiply
    1,960x = 5,288 × 5,288
  4. Step 4: Simplify right side
    1,960x = 27,962,944
  5. Step 5: Solve for x
    x = 27,962,944/1,960
  6. Step 6: Final answer
    x = 14,266.81

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.