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Finding the Fourth Proportional to 8,095.65, 12,120.87 and 4,138.38

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Solution

The fourth proportional to 8,095.65, 12,120.87 and 4,138.38 is: 6,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,095.65 : 12,120.87 = 4,138.38 : x
  2. Step 2: Convert to fraction form
    8,095.65/12,120.87 = 4,138.38/x
  3. Step 3: Cross multiply
    8,095.65x = 12,120.87 × 4,138.38
  4. Step 4: Simplify right side
    8,095.65x = 50,160,765.99
  5. Step 5: Solve for x
    x = 50,160,765.99/8,095.65
  6. Step 6: Final answer
    x = 6,196.01

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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.