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Finding the Fourth Proportional to 11,800.42, 16,284.24 and 6,696.86

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Solution

The fourth proportional to 11,800.42, 16,284.24 and 6,696.86 is: 9,241.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.42 : 16,284.24 = 6,696.86 : x
  2. Step 2: Convert to fraction form
    11,800.42/16,284.24 = 6,696.86/x
  3. Step 3: Cross multiply
    11,800.42x = 16,284.24 × 6,696.86
  4. Step 4: Simplify right side
    11,800.42x = 109,053,316.20
  5. Step 5: Solve for x
    x = 109,053,316.20/11,800.42
  6. Step 6: Final answer
    x = 9,241.48

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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.