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Finding the Third Proportional to 4,749 and 8,436

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Solution

The third proportional to 4,749 and 8,436 is: 14,985.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749 : 8,436 = 8,436 : x
  2. Step 2: Convert to fraction form
    4,749/8,436 = 8,436/x
  3. Step 3: Cross multiply
    4,749x = 8,436 × 8,436
  4. Step 4: Simplify right side
    4,749x = 71,166,096
  5. Step 5: Solve for x
    x = 71,166,096/4,749
  6. Step 6: Final answer
    x = 14,985.49

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.