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Finding the Third Proportional to 8,907.19 and 13,791.38

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Solution

The third proportional to 8,907.19 and 13,791.38 is: 21,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.19 : 13,791.38 = 13,791.38 : x
  2. Step 2: Convert to fraction form
    8,907.19/13,791.38 = 13,791.38/x
  3. Step 3: Cross multiply
    8,907.19x = 13,791.38 × 13,791.38
  4. Step 4: Simplify right side
    8,907.19x = 190,202,024.39
  5. Step 5: Solve for x
    x = 190,202,024.39/8,907.19
  6. Step 6: Final answer
    x = 21,353.77

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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.