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Finding the Third Proportional to 28,656 and 62,964

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Solution

The third proportional to 28,656 and 62,964 is: 138,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656 : 62,964 = 62,964 : x
  2. Step 2: Convert to fraction form
    28,656/62,964 = 62,964/x
  3. Step 3: Cross multiply
    28,656x = 62,964 × 62,964
  4. Step 4: Simplify right side
    28,656x = 3,964,465,296
  5. Step 5: Solve for x
    x = 3,964,465,296/28,656
  6. Step 6: Final answer
    x = 138,346.78

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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.