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Finding the Third Proportional to 19,938 and 29,955

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Solution

The third proportional to 19,938 and 29,955 is: 45,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938 : 29,955 = 29,955 : x
  2. Step 2: Convert to fraction form
    19,938/29,955 = 29,955/x
  3. Step 3: Cross multiply
    19,938x = 29,955 × 29,955
  4. Step 4: Simplify right side
    19,938x = 897,302,025
  5. Step 5: Solve for x
    x = 897,302,025/19,938
  6. Step 6: Final answer
    x = 45,004.62

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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.