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Finding the Third Proportional to 9,643.50 and 20,889

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Solution

The third proportional to 9,643.50 and 20,889 is: 45,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.50 : 20,889 = 20,889 : x
  2. Step 2: Convert to fraction form
    9,643.50/20,889 = 20,889/x
  3. Step 3: Cross multiply
    9,643.50x = 20,889 × 20,889
  4. Step 4: Simplify right side
    9,643.50x = 436,350,321
  5. Step 5: Solve for x
    x = 436,350,321/9,643.50
  6. Step 6: Final answer
    x = 45,248.13

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.