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Finding the Third Proportional to 4,205 and 4,813

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Solution

The third proportional to 4,205 and 4,813 is: 5,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,205 : 4,813 = 4,813 : x
  2. Step 2: Convert to fraction form
    4,205/4,813 = 4,813/x
  3. Step 3: Cross multiply
    4,205x = 4,813 × 4,813
  4. Step 4: Simplify right side
    4,205x = 23,164,969
  5. Step 5: Solve for x
    x = 23,164,969/4,205
  6. Step 6: Final answer
    x = 5,508.91

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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.