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Finding the Third Proportional to 7,434 and 11,288

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Solution

The third proportional to 7,434 and 11,288 is: 17,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434 : 11,288 = 11,288 : x
  2. Step 2: Convert to fraction form
    7,434/11,288 = 11,288/x
  3. Step 3: Cross multiply
    7,434x = 11,288 × 11,288
  4. Step 4: Simplify right side
    7,434x = 127,418,944
  5. Step 5: Solve for x
    x = 127,418,944/7,434
  6. Step 6: Final answer
    x = 17,140.02

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.