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Finding the Third Proportional to 19,380 and 41,403

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Solution

The third proportional to 19,380 and 41,403 is: 88,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380 : 41,403 = 41,403 : x
  2. Step 2: Convert to fraction form
    19,380/41,403 = 41,403/x
  3. Step 3: Cross multiply
    19,380x = 41,403 × 41,403
  4. Step 4: Simplify right side
    19,380x = 1,714,208,409
  5. Step 5: Solve for x
    x = 1,714,208,409/19,380
  6. Step 6: Final answer
    x = 88,452.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.