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Finding the Fourth Proportional to 8,164.71, 11,267.28 and 4,438.71

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Solution

The fourth proportional to 8,164.71, 11,267.28 and 4,438.71 is: 6,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,164.71 : 11,267.28 = 4,438.71 : x
  2. Step 2: Convert to fraction form
    8,164.71/11,267.28 = 4,438.71/x
  3. Step 3: Cross multiply
    8,164.71x = 11,267.28 × 4,438.71
  4. Step 4: Simplify right side
    8,164.71x = 50,012,188.41
  5. Step 5: Solve for x
    x = 50,012,188.41/8,164.71
  6. Step 6: Final answer
    x = 6,125.41

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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.