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Finding the Third Proportional to 3,538 and 5,547

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Solution

The third proportional to 3,538 and 5,547 is: 8,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538 : 5,547 = 5,547 : x
  2. Step 2: Convert to fraction form
    3,538/5,547 = 5,547/x
  3. Step 3: Cross multiply
    3,538x = 5,547 × 5,547
  4. Step 4: Simplify right side
    3,538x = 30,769,209
  5. Step 5: Solve for x
    x = 30,769,209/3,538
  6. Step 6: Final answer
    x = 8,696.78

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.