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Finding the Third Proportional to 19,405 and 29,472

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Solution

The third proportional to 19,405 and 29,472 is: 44,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405 : 29,472 = 29,472 : x
  2. Step 2: Convert to fraction form
    19,405/29,472 = 29,472/x
  3. Step 3: Cross multiply
    19,405x = 29,472 × 29,472
  4. Step 4: Simplify right side
    19,405x = 868,598,784
  5. Step 5: Solve for x
    x = 868,598,784/19,405
  6. Step 6: Final answer
    x = 44,761.60

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.