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Finding the Third Proportional to 8,330.50 and 18,119

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Solution

The third proportional to 8,330.50 and 18,119 is: 39,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.50 : 18,119 = 18,119 : x
  2. Step 2: Convert to fraction form
    8,330.50/18,119 = 18,119/x
  3. Step 3: Cross multiply
    8,330.50x = 18,119 × 18,119
  4. Step 4: Simplify right side
    8,330.50x = 328,298,161
  5. Step 5: Solve for x
    x = 328,298,161/8,330.50
  6. Step 6: Final answer
    x = 39,409.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.