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Finding the Third Proportional to 9,664.50 and 20,913

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Solution

The third proportional to 9,664.50 and 20,913 is: 45,253.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,664.50 : 20,913 = 20,913 : x
  2. Step 2: Convert to fraction form
    9,664.50/20,913 = 20,913/x
  3. Step 3: Cross multiply
    9,664.50x = 20,913 × 20,913
  4. Step 4: Simplify right side
    9,664.50x = 437,353,569
  5. Step 5: Solve for x
    x = 437,353,569/9,664.50
  6. Step 6: Final answer
    x = 45,253.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.