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Finding the Third Proportional to 26,756 and 42,402

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Solution

The third proportional to 26,756 and 42,402 is: 67,197.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,756 : 42,402 = 42,402 : x
  2. Step 2: Convert to fraction form
    26,756/42,402 = 42,402/x
  3. Step 3: Cross multiply
    26,756x = 42,402 × 42,402
  4. Step 4: Simplify right side
    26,756x = 1,797,929,604
  5. Step 5: Solve for x
    x = 1,797,929,604/26,756
  6. Step 6: Final answer
    x = 67,197.25

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.