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Finding the Fourth Proportional to 11,855.51, 16,361.27 and 6,550.22

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Solution

The fourth proportional to 11,855.51, 16,361.27 and 6,550.22 is: 9,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.51 : 16,361.27 = 6,550.22 : x
  2. Step 2: Convert to fraction form
    11,855.51/16,361.27 = 6,550.22/x
  3. Step 3: Cross multiply
    11,855.51x = 16,361.27 × 6,550.22
  4. Step 4: Simplify right side
    11,855.51x = 107,169,840.24
  5. Step 5: Solve for x
    x = 107,169,840.24/11,855.51
  6. Step 6: Final answer
    x = 9,039.66

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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.