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Finding the Third Proportional to 19,422 and 40,484

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Solution

The third proportional to 19,422 and 40,484 is: 84,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422 : 40,484 = 40,484 : x
  2. Step 2: Convert to fraction form
    19,422/40,484 = 40,484/x
  3. Step 3: Cross multiply
    19,422x = 40,484 × 40,484
  4. Step 4: Simplify right side
    19,422x = 1,638,954,256
  5. Step 5: Solve for x
    x = 1,638,954,256/19,422
  6. Step 6: Final answer
    x = 84,386.48

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.