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Finding the Third Proportional to 29,908 and 64,904

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Solution

The third proportional to 29,908 and 64,904 is: 140,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,908 : 64,904 = 64,904 : x
  2. Step 2: Convert to fraction form
    29,908/64,904 = 64,904/x
  3. Step 3: Cross multiply
    29,908x = 64,904 × 64,904
  4. Step 4: Simplify right side
    29,908x = 4,212,529,216
  5. Step 5: Solve for x
    x = 4,212,529,216/29,908
  6. Step 6: Final answer
    x = 140,849.58

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.