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Finding the Third Proportional to 7,138.88 and 15,371.63

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Solution

The third proportional to 7,138.88 and 15,371.63 is: 33,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.88 : 15,371.63 = 15,371.63 : x
  2. Step 2: Convert to fraction form
    7,138.88/15,371.63 = 15,371.63/x
  3. Step 3: Cross multiply
    7,138.88x = 15,371.63 × 15,371.63
  4. Step 4: Simplify right side
    7,138.88x = 236,286,855.14
  5. Step 5: Solve for x
    x = 236,286,855.14/7,138.88
  6. Step 6: Final answer
    x = 33,098.61

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.