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Finding the Third Proportional to 5,345 and 9,529

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Solution

The third proportional to 5,345 and 9,529 is: 16,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345 : 9,529 = 9,529 : x
  2. Step 2: Convert to fraction form
    5,345/9,529 = 9,529/x
  3. Step 3: Cross multiply
    5,345x = 9,529 × 9,529
  4. Step 4: Simplify right side
    5,345x = 90,801,841
  5. Step 5: Solve for x
    x = 90,801,841/5,345
  6. Step 6: Final answer
    x = 16,988.18

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.