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Finding the Fourth Proportional to 72,879.49, 100,574.97 and 41,049.52

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Solution

The fourth proportional to 72,879.49, 100,574.97 and 41,049.52 is: 56,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,879.49 : 100,574.97 = 41,049.52 : x
  2. Step 2: Convert to fraction form
    72,879.49/100,574.97 = 41,049.52/x
  3. Step 3: Cross multiply
    72,879.49x = 100,574.97 × 41,049.52
  4. Step 4: Simplify right side
    72,879.49x = 4,128,553,739.64
  5. Step 5: Solve for x
    x = 4,128,553,739.64/72,879.49
  6. Step 6: Final answer
    x = 56,649.05

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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.