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Finding the Third Proportional to 19,472 and 29,690

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Solution

The third proportional to 19,472 and 29,690 is: 45,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,472 : 29,690 = 29,690 : x
  2. Step 2: Convert to fraction form
    19,472/29,690 = 29,690/x
  3. Step 3: Cross multiply
    19,472x = 29,690 × 29,690
  4. Step 4: Simplify right side
    19,472x = 881,496,100
  5. Step 5: Solve for x
    x = 881,496,100/19,472
  6. Step 6: Final answer
    x = 45,269.93

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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.