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Finding the Third Proportional to 26,805 and 39,429

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Solution

The third proportional to 26,805 and 39,429 is: 57,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,805 : 39,429 = 39,429 : x
  2. Step 2: Convert to fraction form
    26,805/39,429 = 39,429/x
  3. Step 3: Cross multiply
    26,805x = 39,429 × 39,429
  4. Step 4: Simplify right side
    26,805x = 1,554,646,041
  5. Step 5: Solve for x
    x = 1,554,646,041/26,805
  6. Step 6: Final answer
    x = 57,998.36

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.