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Finding the Third Proportional to 7,148 and 9,199

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Solution

The third proportional to 7,148 and 9,199 is: 11,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148 : 9,199 = 9,199 : x
  2. Step 2: Convert to fraction form
    7,148/9,199 = 9,199/x
  3. Step 3: Cross multiply
    7,148x = 9,199 × 9,199
  4. Step 4: Simplify right side
    7,148x = 84,621,601
  5. Step 5: Solve for x
    x = 84,621,601/7,148
  6. Step 6: Final answer
    x = 11,838.50

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.