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Finding the Third Proportional to 38,826 and 64,431

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Solution

The third proportional to 38,826 and 64,431 is: 106,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,826 : 64,431 = 64,431 : x
  2. Step 2: Convert to fraction form
    38,826/64,431 = 64,431/x
  3. Step 3: Cross multiply
    38,826x = 64,431 × 64,431
  4. Step 4: Simplify right side
    38,826x = 4,151,353,761
  5. Step 5: Solve for x
    x = 4,151,353,761/38,826
  6. Step 6: Final answer
    x = 106,922.00

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.