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Finding the Third Proportional to 6,545 and 7,085

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Solution

The third proportional to 6,545 and 7,085 is: 7,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,545 : 7,085 = 7,085 : x
  2. Step 2: Convert to fraction form
    6,545/7,085 = 7,085/x
  3. Step 3: Cross multiply
    6,545x = 7,085 × 7,085
  4. Step 4: Simplify right side
    6,545x = 50,197,225
  5. Step 5: Solve for x
    x = 50,197,225/6,545
  6. Step 6: Final answer
    x = 7,669.55

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.