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Finding the Third Proportional to 18,389 and 29,132

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Solution

The third proportional to 18,389 and 29,132 is: 46,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389 : 29,132 = 29,132 : x
  2. Step 2: Convert to fraction form
    18,389/29,132 = 29,132/x
  3. Step 3: Cross multiply
    18,389x = 29,132 × 29,132
  4. Step 4: Simplify right side
    18,389x = 848,673,424
  5. Step 5: Solve for x
    x = 848,673,424/18,389
  6. Step 6: Final answer
    x = 46,151.15

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.