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Finding the Fourth Proportional to 8,236.10, 12,366.45 and 8,113.08

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Solution

The fourth proportional to 8,236.10, 12,366.45 and 8,113.08 is: 12,181.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.10 : 12,366.45 = 8,113.08 : x
  2. Step 2: Convert to fraction form
    8,236.10/12,366.45 = 8,113.08/x
  3. Step 3: Cross multiply
    8,236.10x = 12,366.45 × 8,113.08
  4. Step 4: Simplify right side
    8,236.10x = 100,329,998.17
  5. Step 5: Solve for x
    x = 100,329,998.17/8,236.10
  6. Step 6: Final answer
    x = 12,181.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.