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Finding the Fourth Proportional to 8,636.11, 11,905.13 and 6,110.44

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Solution

The fourth proportional to 8,636.11, 11,905.13 and 6,110.44 is: 8,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.11 : 11,905.13 = 6,110.44 : x
  2. Step 2: Convert to fraction form
    8,636.11/11,905.13 = 6,110.44/x
  3. Step 3: Cross multiply
    8,636.11x = 11,905.13 × 6,110.44
  4. Step 4: Simplify right side
    8,636.11x = 72,745,568.07
  5. Step 5: Solve for x
    x = 72,745,568.07/8,636.11
  6. Step 6: Final answer
    x = 8,423.42

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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.