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Finding the Fourth Proportional to 61,906.26, 85,450.06 and 39,550.26

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Solution

The fourth proportional to 61,906.26, 85,450.06 and 39,550.26 is: 54,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,906.26 : 85,450.06 = 39,550.26 : x
  2. Step 2: Convert to fraction form
    61,906.26/85,450.06 = 39,550.26/x
  3. Step 3: Cross multiply
    61,906.26x = 85,450.06 × 39,550.26
  4. Step 4: Simplify right side
    61,906.26x = 3,379,572,090.02
  5. Step 5: Solve for x
    x = 3,379,572,090.02/61,906.26
  6. Step 6: Final answer
    x = 54,591.77

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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.