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Finding the Third Proportional to 5,116 and 12,382

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Solution

The third proportional to 5,116 and 12,382 is: 29,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116 : 12,382 = 12,382 : x
  2. Step 2: Convert to fraction form
    5,116/12,382 = 12,382/x
  3. Step 3: Cross multiply
    5,116x = 12,382 × 12,382
  4. Step 4: Simplify right side
    5,116x = 153,313,924
  5. Step 5: Solve for x
    x = 153,313,924/5,116
  6. Step 6: Final answer
    x = 29,967.54

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.