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Finding the Third Proportional to 19,109 and 29,516

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Solution

The third proportional to 19,109 and 29,516 is: 45,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109 : 29,516 = 29,516 : x
  2. Step 2: Convert to fraction form
    19,109/29,516 = 29,516/x
  3. Step 3: Cross multiply
    19,109x = 29,516 × 29,516
  4. Step 4: Simplify right side
    19,109x = 871,194,256
  5. Step 5: Solve for x
    x = 871,194,256/19,109
  6. Step 6: Final answer
    x = 45,590.78

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.