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Finding the Fourth Proportional to 11,661.40, 16,092.74 and 6,356.22

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Solution

The fourth proportional to 11,661.40, 16,092.74 and 6,356.22 is: 8,771.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.40 : 16,092.74 = 6,356.22 : x
  2. Step 2: Convert to fraction form
    11,661.40/16,092.74 = 6,356.22/x
  3. Step 3: Cross multiply
    11,661.40x = 16,092.74 × 6,356.22
  4. Step 4: Simplify right side
    11,661.40x = 102,288,995.84
  5. Step 5: Solve for x
    x = 102,288,995.84/11,661.40
  6. Step 6: Final answer
    x = 8,771.59

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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.