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Finding the Third Proportional to 19,993 and 29,880

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Solution

The third proportional to 19,993 and 29,880 is: 44,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993 : 29,880 = 29,880 : x
  2. Step 2: Convert to fraction form
    19,993/29,880 = 29,880/x
  3. Step 3: Cross multiply
    19,993x = 29,880 × 29,880
  4. Step 4: Simplify right side
    19,993x = 892,814,400
  5. Step 5: Solve for x
    x = 892,814,400/19,993
  6. Step 6: Final answer
    x = 44,656.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.