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Finding the Third Proportional to 21,807 and 32,874.75

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Solution

The third proportional to 21,807 and 32,874.75 is: 49,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807 : 32,874.75 = 32,874.75 : x
  2. Step 2: Convert to fraction form
    21,807/32,874.75 = 32,874.75/x
  3. Step 3: Cross multiply
    21,807x = 32,874.75 × 32,874.75
  4. Step 4: Simplify right side
    21,807x = 1,080,749,187.56
  5. Step 5: Solve for x
    x = 1,080,749,187.56/21,807
  6. Step 6: Final answer
    x = 49,559.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.