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Finding the Third Proportional to 3,685 and 5,353

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Solution

The third proportional to 3,685 and 5,353 is: 7,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685 : 5,353 = 5,353 : x
  2. Step 2: Convert to fraction form
    3,685/5,353 = 5,353/x
  3. Step 3: Cross multiply
    3,685x = 5,353 × 5,353
  4. Step 4: Simplify right side
    3,685x = 28,654,609
  5. Step 5: Solve for x
    x = 28,654,609/3,685
  6. Step 6: Final answer
    x = 7,776.01

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.