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Finding the Third Proportional to 17,679 and 27,445.50

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Solution

The third proportional to 17,679 and 27,445.50 is: 42,607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679 : 27,445.50 = 27,445.50 : x
  2. Step 2: Convert to fraction form
    17,679/27,445.50 = 27,445.50/x
  3. Step 3: Cross multiply
    17,679x = 27,445.50 × 27,445.50
  4. Step 4: Simplify right side
    17,679x = 753,255,470.25
  5. Step 5: Solve for x
    x = 753,255,470.25/17,679
  6. Step 6: Final answer
    x = 42,607.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.