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Finding the Fourth Proportional to 66,669.72, 100,004.67 and 27,226.83

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Solution

The fourth proportional to 66,669.72, 100,004.67 and 27,226.83 is: 40,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,669.72 : 100,004.67 = 27,226.83 : x
  2. Step 2: Convert to fraction form
    66,669.72/100,004.67 = 27,226.83/x
  3. Step 3: Cross multiply
    66,669.72x = 100,004.67 × 27,226.83
  4. Step 4: Simplify right side
    66,669.72x = 2,722,810,149.30
  5. Step 5: Solve for x
    x = 2,722,810,149.30/66,669.72
  6. Step 6: Final answer
    x = 40,840.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.