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Finding the Third Proportional to 19,638 and 29,374.50

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Solution

The third proportional to 19,638 and 29,374.50 is: 43,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638 : 29,374.50 = 29,374.50 : x
  2. Step 2: Convert to fraction form
    19,638/29,374.50 = 29,374.50/x
  3. Step 3: Cross multiply
    19,638x = 29,374.50 × 29,374.50
  4. Step 4: Simplify right side
    19,638x = 862,861,250.25
  5. Step 5: Solve for x
    x = 862,861,250.25/19,638
  6. Step 6: Final answer
    x = 43,938.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.