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Finding the Third Proportional to 5,342 and 7,984

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Solution

The third proportional to 5,342 and 7,984 is: 11,932.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342 : 7,984 = 7,984 : x
  2. Step 2: Convert to fraction form
    5,342/7,984 = 7,984/x
  3. Step 3: Cross multiply
    5,342x = 7,984 × 7,984
  4. Step 4: Simplify right side
    5,342x = 63,744,256
  5. Step 5: Solve for x
    x = 63,744,256/5,342
  6. Step 6: Final answer
    x = 11,932.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.