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Finding the Fourth Proportional to 50,992.70, 70,359.99 and 29,772.86

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Solution

The fourth proportional to 50,992.70, 70,359.99 and 29,772.86 is: 41,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,992.70 : 70,359.99 = 29,772.86 : x
  2. Step 2: Convert to fraction form
    50,992.70/70,359.99 = 29,772.86/x
  3. Step 3: Cross multiply
    50,992.70x = 70,359.99 × 29,772.86
  4. Step 4: Simplify right side
    50,992.70x = 2,094,818,131.87
  5. Step 5: Solve for x
    x = 2,094,818,131.87/50,992.70
  6. Step 6: Final answer
    x = 41,080.75

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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.