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Finding the Fourth Proportional to 43,908.66, 65,877.78 and 13,927.86

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Solution

The fourth proportional to 43,908.66, 65,877.78 and 13,927.86 is: 20,896.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,908.66 : 65,877.78 = 13,927.86 : x
  2. Step 2: Convert to fraction form
    43,908.66/65,877.78 = 13,927.86/x
  3. Step 3: Cross multiply
    43,908.66x = 65,877.78 × 13,927.86
  4. Step 4: Simplify right side
    43,908.66x = 917,536,496.95
  5. Step 5: Solve for x
    x = 917,536,496.95/43,908.66
  6. Step 6: Final answer
    x = 20,896.48

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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.