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Finding the Third Proportional to 11,913.75 and 15,896.25

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Solution

The third proportional to 11,913.75 and 15,896.25 is: 21,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.75 : 15,896.25 = 15,896.25 : x
  2. Step 2: Convert to fraction form
    11,913.75/15,896.25 = 15,896.25/x
  3. Step 3: Cross multiply
    11,913.75x = 15,896.25 × 15,896.25
  4. Step 4: Simplify right side
    11,913.75x = 252,690,764.06
  5. Step 5: Solve for x
    x = 252,690,764.06/11,913.75
  6. Step 6: Final answer
    x = 21,210.01

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.