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Finding the Fourth Proportional to 8,061.55, 12,078.02 and 3,371.22

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Solution

The fourth proportional to 8,061.55, 12,078.02 and 3,371.22 is: 5,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.55 : 12,078.02 = 3,371.22 : x
  2. Step 2: Convert to fraction form
    8,061.55/12,078.02 = 3,371.22/x
  3. Step 3: Cross multiply
    8,061.55x = 12,078.02 × 3,371.22
  4. Step 4: Simplify right side
    8,061.55x = 40,717,662.58
  5. Step 5: Solve for x
    x = 40,717,662.58/8,061.55
  6. Step 6: Final answer
    x = 5,050.85

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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.