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Finding the Third Proportional to 5,382 and 7,683

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Solution

The third proportional to 5,382 and 7,683 is: 10,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382 : 7,683 = 7,683 : x
  2. Step 2: Convert to fraction form
    5,382/7,683 = 7,683/x
  3. Step 3: Cross multiply
    5,382x = 7,683 × 7,683
  4. Step 4: Simplify right side
    5,382x = 59,028,489
  5. Step 5: Solve for x
    x = 59,028,489/5,382
  6. Step 6: Final answer
    x = 10,967.76

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.