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Finding the Third Proportional to 19,421 and 29,055

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Solution

The third proportional to 19,421 and 29,055 is: 43,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421 : 29,055 = 29,055 : x
  2. Step 2: Convert to fraction form
    19,421/29,055 = 29,055/x
  3. Step 3: Cross multiply
    19,421x = 29,055 × 29,055
  4. Step 4: Simplify right side
    19,421x = 844,193,025
  5. Step 5: Solve for x
    x = 844,193,025/19,421
  6. Step 6: Final answer
    x = 43,468.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.