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Finding the Third Proportional to 4,242 and 5,202

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Solution

The third proportional to 4,242 and 5,202 is: 6,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242 : 5,202 = 5,202 : x
  2. Step 2: Convert to fraction form
    4,242/5,202 = 5,202/x
  3. Step 3: Cross multiply
    4,242x = 5,202 × 5,202
  4. Step 4: Simplify right side
    4,242x = 27,060,804
  5. Step 5: Solve for x
    x = 27,060,804/4,242
  6. Step 6: Final answer
    x = 6,379.26

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.