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Finding the Third Proportional to 3,486 and 7,460

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Solution

The third proportional to 3,486 and 7,460 is: 15,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486 : 7,460 = 7,460 : x
  2. Step 2: Convert to fraction form
    3,486/7,460 = 7,460/x
  3. Step 3: Cross multiply
    3,486x = 7,460 × 7,460
  4. Step 4: Simplify right side
    3,486x = 55,651,600
  5. Step 5: Solve for x
    x = 55,651,600/3,486
  6. Step 6: Final answer
    x = 15,964.31

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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.