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Finding the Fourth Proportional to 14,755.17, 20,361.87 and 8,040.85

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Solution

The fourth proportional to 14,755.17, 20,361.87 and 8,040.85 is: 11,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,755.17 : 20,361.87 = 8,040.85 : x
  2. Step 2: Convert to fraction form
    14,755.17/20,361.87 = 8,040.85/x
  3. Step 3: Cross multiply
    14,755.17x = 20,361.87 × 8,040.85
  4. Step 4: Simplify right side
    14,755.17x = 163,726,742.39
  5. Step 5: Solve for x
    x = 163,726,742.39/14,755.17
  6. Step 6: Final answer
    x = 11,096.23

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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.