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Finding the Fourth Proportional to 8,173.06, 11,278.84 and 4,447.06

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Solution

The fourth proportional to 8,173.06, 11,278.84 and 4,447.06 is: 6,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.06 : 11,278.84 = 4,447.06 : x
  2. Step 2: Convert to fraction form
    8,173.06/11,278.84 = 4,447.06/x
  3. Step 3: Cross multiply
    8,173.06x = 11,278.84 × 4,447.06
  4. Step 4: Simplify right side
    8,173.06x = 50,157,678.21
  5. Step 5: Solve for x
    x = 50,157,678.21/8,173.06
  6. Step 6: Final answer
    x = 6,136.95

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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.