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Finding the Third Proportional to 9,906 and 14,859

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Solution

The third proportional to 9,906 and 14,859 is: 22,288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906 : 14,859 = 14,859 : x
  2. Step 2: Convert to fraction form
    9,906/14,859 = 14,859/x
  3. Step 3: Cross multiply
    9,906x = 14,859 × 14,859
  4. Step 4: Simplify right side
    9,906x = 220,789,881
  5. Step 5: Solve for x
    x = 220,789,881/9,906
  6. Step 6: Final answer
    x = 22,288.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.