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Finding the Fourth Proportional to 66,864.98, 92,273.10 and 36,651.98

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Solution

The fourth proportional to 66,864.98, 92,273.10 and 36,651.98 is: 50,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.98 : 92,273.10 = 36,651.98 : x
  2. Step 2: Convert to fraction form
    66,864.98/92,273.10 = 36,651.98/x
  3. Step 3: Cross multiply
    66,864.98x = 92,273.10 × 36,651.98
  4. Step 4: Simplify right side
    66,864.98x = 3,381,991,815.74
  5. Step 5: Solve for x
    x = 3,381,991,815.74/66,864.98
  6. Step 6: Final answer
    x = 50,579.42

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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.