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Finding the Third Proportional to 29,772 and 47,392

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Solution

The third proportional to 29,772 and 47,392 is: 75,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,772 : 47,392 = 47,392 : x
  2. Step 2: Convert to fraction form
    29,772/47,392 = 47,392/x
  3. Step 3: Cross multiply
    29,772x = 47,392 × 47,392
  4. Step 4: Simplify right side
    29,772x = 2,246,001,664
  5. Step 5: Solve for x
    x = 2,246,001,664/29,772
  6. Step 6: Final answer
    x = 75,440.07

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.