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Finding the Fourth Proportional to 49,595.88, 74,393.82 and 12,659.88

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Solution

The fourth proportional to 49,595.88, 74,393.82 and 12,659.88 is: 18,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,595.88 : 74,393.82 = 12,659.88 : x
  2. Step 2: Convert to fraction form
    49,595.88/74,393.82 = 12,659.88/x
  3. Step 3: Cross multiply
    49,595.88x = 74,393.82 × 12,659.88
  4. Step 4: Simplify right side
    49,595.88x = 941,816,833.94
  5. Step 5: Solve for x
    x = 941,816,833.94/49,595.88
  6. Step 6: Final answer
    x = 18,989.82

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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.