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Finding the Third Proportional to 4,792 and 5,485

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Solution

The third proportional to 4,792 and 5,485 is: 6,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,792 : 5,485 = 5,485 : x
  2. Step 2: Convert to fraction form
    4,792/5,485 = 5,485/x
  3. Step 3: Cross multiply
    4,792x = 5,485 × 5,485
  4. Step 4: Simplify right side
    4,792x = 30,085,225
  5. Step 5: Solve for x
    x = 30,085,225/4,792
  6. Step 6: Final answer
    x = 6,278.22

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.