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Finding the Third Proportional to 12,645 and 19,273.50

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Solution

The third proportional to 12,645 and 19,273.50 is: 29,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645 : 19,273.50 = 19,273.50 : x
  2. Step 2: Convert to fraction form
    12,645/19,273.50 = 19,273.50/x
  3. Step 3: Cross multiply
    12,645x = 19,273.50 × 19,273.50
  4. Step 4: Simplify right side
    12,645x = 371,467,802.25
  5. Step 5: Solve for x
    x = 371,467,802.25/12,645
  6. Step 6: Final answer
    x = 29,376.65

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.