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Finding the Third Proportional to 8,938.88 and 19,416

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Solution

The third proportional to 8,938.88 and 19,416 is: 42,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.88 : 19,416 = 19,416 : x
  2. Step 2: Convert to fraction form
    8,938.88/19,416 = 19,416/x
  3. Step 3: Cross multiply
    8,938.88x = 19,416 × 19,416
  4. Step 4: Simplify right side
    8,938.88x = 376,981,056
  5. Step 5: Solve for x
    x = 376,981,056/8,938.88
  6. Step 6: Final answer
    x = 42,173.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.