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Finding the Fourth Proportional to 66,961.85, 100,441.14 and 17,041.98

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Solution

The fourth proportional to 66,961.85, 100,441.14 and 17,041.98 is: 25,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,961.85 : 100,441.14 = 17,041.98 : x
  2. Step 2: Convert to fraction form
    66,961.85/100,441.14 = 17,041.98/x
  3. Step 3: Cross multiply
    66,961.85x = 100,441.14 × 17,041.98
  4. Step 4: Simplify right side
    66,961.85x = 1,711,715,899.06
  5. Step 5: Solve for x
    x = 1,711,715,899.06/66,961.85
  6. Step 6: Final answer
    x = 25,562.56

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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.