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Finding the Third Proportional to 1,516 and 3,248

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Solution

The third proportional to 1,516 and 3,248 is: 6,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516 : 3,248 = 3,248 : x
  2. Step 2: Convert to fraction form
    1,516/3,248 = 3,248/x
  3. Step 3: Cross multiply
    1,516x = 3,248 × 3,248
  4. Step 4: Simplify right side
    1,516x = 10,549,504
  5. Step 5: Solve for x
    x = 10,549,504/1,516
  6. Step 6: Final answer
    x = 6,958.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.