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Finding the Third Proportional to 11,223 and 15,961.50

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Solution

The third proportional to 11,223 and 15,961.50 is: 22,700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223 : 15,961.50 = 15,961.50 : x
  2. Step 2: Convert to fraction form
    11,223/15,961.50 = 15,961.50/x
  3. Step 3: Cross multiply
    11,223x = 15,961.50 × 15,961.50
  4. Step 4: Simplify right side
    11,223x = 254,769,482.25
  5. Step 5: Solve for x
    x = 254,769,482.25/11,223
  6. Step 6: Final answer
    x = 22,700.66

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.