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Finding the Third Proportional to 19,479 and 41,385

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Solution

The third proportional to 19,479 and 41,385 is: 87,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479 : 41,385 = 41,385 : x
  2. Step 2: Convert to fraction form
    19,479/41,385 = 41,385/x
  3. Step 3: Cross multiply
    19,479x = 41,385 × 41,385
  4. Step 4: Simplify right side
    19,479x = 1,712,718,225
  5. Step 5: Solve for x
    x = 1,712,718,225/19,479
  6. Step 6: Final answer
    x = 87,926.39

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.