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Finding the Third Proportional to 3,316 and 5,156

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Solution

The third proportional to 3,316 and 5,156 is: 8,016.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316 : 5,156 = 5,156 : x
  2. Step 2: Convert to fraction form
    3,316/5,156 = 5,156/x
  3. Step 3: Cross multiply
    3,316x = 5,156 × 5,156
  4. Step 4: Simplify right side
    3,316x = 26,584,336
  5. Step 5: Solve for x
    x = 26,584,336/3,316
  6. Step 6: Final answer
    x = 8,016.99

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.