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Finding the Fourth Proportional to 73,169.34, 100,973.70 and 39,635.34

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Solution

The fourth proportional to 73,169.34, 100,973.70 and 39,635.34 is: 54,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,169.34 : 100,973.70 = 39,635.34 : x
  2. Step 2: Convert to fraction form
    73,169.34/100,973.70 = 39,635.34/x
  3. Step 3: Cross multiply
    73,169.34x = 100,973.70 × 39,635.34
  4. Step 4: Simplify right side
    73,169.34x = 4,002,126,930.56
  5. Step 5: Solve for x
    x = 4,002,126,930.56/73,169.34
  6. Step 6: Final answer
    x = 54,696.78

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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.