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Finding the Third Proportional to 29,328 and 47,220

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Solution

The third proportional to 29,328 and 47,220 is: 76,027.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,328 : 47,220 = 47,220 : x
  2. Step 2: Convert to fraction form
    29,328/47,220 = 47,220/x
  3. Step 3: Cross multiply
    29,328x = 47,220 × 47,220
  4. Step 4: Simplify right side
    29,328x = 2,229,728,400
  5. Step 5: Solve for x
    x = 2,229,728,400/29,328
  6. Step 6: Final answer
    x = 76,027.29

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.