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Finding the Third Proportional to 12,368.25 and 19,181.25

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Solution

The third proportional to 12,368.25 and 19,181.25 is: 29,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.25 : 19,181.25 = 19,181.25 : x
  2. Step 2: Convert to fraction form
    12,368.25/19,181.25 = 19,181.25/x
  3. Step 3: Cross multiply
    12,368.25x = 19,181.25 × 19,181.25
  4. Step 4: Simplify right side
    12,368.25x = 367,920,351.56
  5. Step 5: Solve for x
    x = 367,920,351.56/12,368.25
  6. Step 6: Final answer
    x = 29,747.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.