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Finding the Third Proportional to 3,984 and 4,416

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Solution

The third proportional to 3,984 and 4,416 is: 4,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984 : 4,416 = 4,416 : x
  2. Step 2: Convert to fraction form
    3,984/4,416 = 4,416/x
  3. Step 3: Cross multiply
    3,984x = 4,416 × 4,416
  4. Step 4: Simplify right side
    3,984x = 19,501,056
  5. Step 5: Solve for x
    x = 19,501,056/3,984
  6. Step 6: Final answer
    x = 4,894.84

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.