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Finding the Third Proportional to 3,984 and 6,507

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Solution

The third proportional to 3,984 and 6,507 is: 10,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984 : 6,507 = 6,507 : x
  2. Step 2: Convert to fraction form
    3,984/6,507 = 6,507/x
  3. Step 3: Cross multiply
    3,984x = 6,507 × 6,507
  4. Step 4: Simplify right side
    3,984x = 42,341,049
  5. Step 5: Solve for x
    x = 42,341,049/3,984
  6. Step 6: Final answer
    x = 10,627.77

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.