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Finding the Third Proportional to 9,029.50 and 19,679

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Solution

The third proportional to 9,029.50 and 19,679 is: 42,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,029.50 : 19,679 = 19,679 : x
  2. Step 2: Convert to fraction form
    9,029.50/19,679 = 19,679/x
  3. Step 3: Cross multiply
    9,029.50x = 19,679 × 19,679
  4. Step 4: Simplify right side
    9,029.50x = 387,263,041
  5. Step 5: Solve for x
    x = 387,263,041/9,029.50
  6. Step 6: Final answer
    x = 42,888.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.