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Finding the Fourth Proportional to 73,185.97, 100,996.65 and 39,651.97

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Solution

The fourth proportional to 73,185.97, 100,996.65 and 39,651.97 is: 54,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,185.97 : 100,996.65 = 39,651.97 : x
  2. Step 2: Convert to fraction form
    73,185.97/100,996.65 = 39,651.97/x
  3. Step 3: Cross multiply
    73,185.97x = 100,996.65 × 39,651.97
  4. Step 4: Simplify right side
    73,185.97x = 4,004,715,937.64
  5. Step 5: Solve for x
    x = 4,004,715,937.64/73,185.97
  6. Step 6: Final answer
    x = 54,719.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.