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Finding the Third Proportional to 29,408 and 64,104

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Solution

The third proportional to 29,408 and 64,104 is: 139,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,408 : 64,104 = 64,104 : x
  2. Step 2: Convert to fraction form
    29,408/64,104 = 64,104/x
  3. Step 3: Cross multiply
    29,408x = 64,104 × 64,104
  4. Step 4: Simplify right side
    29,408x = 4,109,322,816
  5. Step 5: Solve for x
    x = 4,109,322,816/29,408
  6. Step 6: Final answer
    x = 139,734.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.