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Finding the Third Proportional to 5,416 and 10,148

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Solution

The third proportional to 5,416 and 10,148 is: 19,014.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416 : 10,148 = 10,148 : x
  2. Step 2: Convert to fraction form
    5,416/10,148 = 10,148/x
  3. Step 3: Cross multiply
    5,416x = 10,148 × 10,148
  4. Step 4: Simplify right side
    5,416x = 102,981,904
  5. Step 5: Solve for x
    x = 102,981,904/5,416
  6. Step 6: Final answer
    x = 19,014.38

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.