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Finding the Third Proportional to 38,799 and 40,641.75

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Solution

The third proportional to 38,799 and 40,641.75 is: 42,572.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,799 : 40,641.75 = 40,641.75 : x
  2. Step 2: Convert to fraction form
    38,799/40,641.75 = 40,641.75/x
  3. Step 3: Cross multiply
    38,799x = 40,641.75 × 40,641.75
  4. Step 4: Simplify right side
    38,799x = 1,651,751,843.06
  5. Step 5: Solve for x
    x = 1,651,751,843.06/38,799
  6. Step 6: Final answer
    x = 42,572.02

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Why These Related Problems?

These problems maintain the same ratio (1.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.