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Finding the Fourth Proportional to 11,866.44, 16,375.44 and 6,561.22

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Solution

The fourth proportional to 11,866.44, 16,375.44 and 6,561.22 is: 9,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.44 : 16,375.44 = 6,561.22 : x
  2. Step 2: Convert to fraction form
    11,866.44/16,375.44 = 6,561.22/x
  3. Step 3: Cross multiply
    11,866.44x = 16,375.44 × 6,561.22
  4. Step 4: Simplify right side
    11,866.44x = 107,442,864.44
  5. Step 5: Solve for x
    x = 107,442,864.44/11,866.44
  6. Step 6: Final answer
    x = 9,054.35

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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.