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Finding the Third Proportional to 514 and 1,316

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Solution

The third proportional to 514 and 1,316 is: 3,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    514 : 1,316 = 1,316 : x
  2. Step 2: Convert to fraction form
    514/1,316 = 1,316/x
  3. Step 3: Cross multiply
    514x = 1,316 × 1,316
  4. Step 4: Simplify right side
    514x = 1,731,856
  5. Step 5: Solve for x
    x = 1,731,856/514
  6. Step 6: Final answer
    x = 3,369.37

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.