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Finding the Third Proportional to 29,812 and 64,268

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Solution

The third proportional to 29,812 and 64,268 is: 138,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,812 : 64,268 = 64,268 : x
  2. Step 2: Convert to fraction form
    29,812/64,268 = 64,268/x
  3. Step 3: Cross multiply
    29,812x = 64,268 × 64,268
  4. Step 4: Simplify right side
    29,812x = 4,130,375,824
  5. Step 5: Solve for x
    x = 4,130,375,824/29,812
  6. Step 6: Final answer
    x = 138,547.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.