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Finding the Third Proportional to 7,125 and 11,844

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Solution

The third proportional to 7,125 and 11,844 is: 19,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125 : 11,844 = 11,844 : x
  2. Step 2: Convert to fraction form
    7,125/11,844 = 11,844/x
  3. Step 3: Cross multiply
    7,125x = 11,844 × 11,844
  4. Step 4: Simplify right side
    7,125x = 140,280,336
  5. Step 5: Solve for x
    x = 140,280,336/7,125
  6. Step 6: Final answer
    x = 19,688.47

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.