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Finding the Third Proportional to 17,115 and 25,119

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Solution

The third proportional to 17,115 and 25,119 is: 36,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115 : 25,119 = 25,119 : x
  2. Step 2: Convert to fraction form
    17,115/25,119 = 25,119/x
  3. Step 3: Cross multiply
    17,115x = 25,119 × 25,119
  4. Step 4: Simplify right side
    17,115x = 630,964,161
  5. Step 5: Solve for x
    x = 630,964,161/17,115
  6. Step 6: Final answer
    x = 36,866.15

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.