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Finding the Third Proportional to 53,396 and 79,902

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Solution

The third proportional to 53,396 and 79,902 is: 119,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,396 : 79,902 = 79,902 : x
  2. Step 2: Convert to fraction form
    53,396/79,902 = 79,902/x
  3. Step 3: Cross multiply
    53,396x = 79,902 × 79,902
  4. Step 4: Simplify right side
    53,396x = 6,384,329,604
  5. Step 5: Solve for x
    x = 6,384,329,604/53,396
  6. Step 6: Final answer
    x = 119,565.69

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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.