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Finding the Third Proportional to 4,817 and 6,442

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Solution

The third proportional to 4,817 and 6,442 is: 8,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817 : 6,442 = 6,442 : x
  2. Step 2: Convert to fraction form
    4,817/6,442 = 6,442/x
  3. Step 3: Cross multiply
    4,817x = 6,442 × 6,442
  4. Step 4: Simplify right side
    4,817x = 41,499,364
  5. Step 5: Solve for x
    x = 41,499,364/4,817
  6. Step 6: Final answer
    x = 8,615.19

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.