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Finding the Fourth Proportional to 72,859.50, 100,546.41 and 41,028.93

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Solution

The fourth proportional to 72,859.50, 100,546.41 and 41,028.93 is: 56,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,859.50 : 100,546.41 = 41,028.93 : x
  2. Step 2: Convert to fraction form
    72,859.50/100,546.41 = 41,028.93/x
  3. Step 3: Cross multiply
    72,859.50x = 100,546.41 × 41,028.93
  4. Step 4: Simplify right side
    72,859.50x = 4,125,311,771.50
  5. Step 5: Solve for x
    x = 4,125,311,771.50/72,859.50
  6. Step 6: Final answer
    x = 56,620.09

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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.