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Finding the Fourth Proportional to 66,889.01, 100,333.71 and 16,969.11

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Solution

The fourth proportional to 66,889.01, 100,333.71 and 16,969.11 is: 25,453.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889.01 : 100,333.71 = 16,969.11 : x
  2. Step 2: Convert to fraction form
    66,889.01/100,333.71 = 16,969.11/x
  3. Step 3: Cross multiply
    66,889.01x = 100,333.71 × 16,969.11
  4. Step 4: Simplify right side
    66,889.01x = 1,702,573,761.70
  5. Step 5: Solve for x
    x = 1,702,573,761.70/66,889.01
  6. Step 6: Final answer
    x = 25,453.72

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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.