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Finding the Third Proportional to 3,490 and 7,514

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Solution

The third proportional to 3,490 and 7,514 is: 16,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490 : 7,514 = 7,514 : x
  2. Step 2: Convert to fraction form
    3,490/7,514 = 7,514/x
  3. Step 3: Cross multiply
    3,490x = 7,514 × 7,514
  4. Step 4: Simplify right side
    3,490x = 56,460,196
  5. Step 5: Solve for x
    x = 56,460,196/3,490
  6. Step 6: Final answer
    x = 16,177.71

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.