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Finding the Third Proportional to 12,820 and 27,476

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Solution

The third proportional to 12,820 and 27,476 is: 58,886.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820 : 27,476 = 27,476 : x
  2. Step 2: Convert to fraction form
    12,820/27,476 = 27,476/x
  3. Step 3: Cross multiply
    12,820x = 27,476 × 27,476
  4. Step 4: Simplify right side
    12,820x = 754,930,576
  5. Step 5: Solve for x
    x = 754,930,576/12,820
  6. Step 6: Final answer
    x = 58,886.94

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.