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Finding the Third Proportional to 30,984 and 47,406

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Solution

The third proportional to 30,984 and 47,406 is: 72,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984 : 47,406 = 47,406 : x
  2. Step 2: Convert to fraction form
    30,984/47,406 = 47,406/x
  3. Step 3: Cross multiply
    30,984x = 47,406 × 47,406
  4. Step 4: Simplify right side
    30,984x = 2,247,328,836
  5. Step 5: Solve for x
    x = 2,247,328,836/30,984
  6. Step 6: Final answer
    x = 72,531.91

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.