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Finding the Third Proportional to 29,286 and 64,402

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Solution

The third proportional to 29,286 and 64,402 is: 141,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,286 : 64,402 = 64,402 : x
  2. Step 2: Convert to fraction form
    29,286/64,402 = 64,402/x
  3. Step 3: Cross multiply
    29,286x = 64,402 × 64,402
  4. Step 4: Simplify right side
    29,286x = 4,147,617,604
  5. Step 5: Solve for x
    x = 4,147,617,604/29,286
  6. Step 6: Final answer
    x = 141,624.59

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.