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Finding the Fourth Proportional to 66,699.01, 100,011.61 and 27,283.83

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Solution

The fourth proportional to 66,699.01, 100,011.61 and 27,283.83 is: 40,910.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,699.01 : 100,011.61 = 27,283.83 : x
  2. Step 2: Convert to fraction form
    66,699.01/100,011.61 = 27,283.83/x
  3. Step 3: Cross multiply
    66,699.01x = 100,011.61 × 27,283.83
  4. Step 4: Simplify right side
    66,699.01x = 2,728,699,765.27
  5. Step 5: Solve for x
    x = 2,728,699,765.27/66,699.01
  6. Step 6: Final answer
    x = 40,910.65

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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.