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Finding the Third Proportional to 5,381 and 7,265

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Solution

The third proportional to 5,381 and 7,265 is: 9,808.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381 : 7,265 = 7,265 : x
  2. Step 2: Convert to fraction form
    5,381/7,265 = 7,265/x
  3. Step 3: Cross multiply
    5,381x = 7,265 × 7,265
  4. Step 4: Simplify right side
    5,381x = 52,780,225
  5. Step 5: Solve for x
    x = 52,780,225/5,381
  6. Step 6: Final answer
    x = 9,808.63

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.