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Finding the Third Proportional to 35,472 and 77,856

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Solution

The third proportional to 35,472 and 77,856 is: 170,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,472 : 77,856 = 77,856 : x
  2. Step 2: Convert to fraction form
    35,472/77,856 = 77,856/x
  3. Step 3: Cross multiply
    35,472x = 77,856 × 77,856
  4. Step 4: Simplify right side
    35,472x = 6,061,556,736
  5. Step 5: Solve for x
    x = 6,061,556,736/35,472
  6. Step 6: Final answer
    x = 170,882.86

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.