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Finding the Fourth Proportional to 66,059.82, 99,100.04 and 21,676.47

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Solution

The fourth proportional to 66,059.82, 99,100.04 and 21,676.47 is: 32,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,059.82 : 99,100.04 = 21,676.47 : x
  2. Step 2: Convert to fraction form
    66,059.82/99,100.04 = 21,676.47/x
  3. Step 3: Cross multiply
    66,059.82x = 99,100.04 × 21,676.47
  4. Step 4: Simplify right side
    66,059.82x = 2,148,138,935.68
  5. Step 5: Solve for x
    x = 2,148,138,935.68/66,059.82
  6. Step 6: Final answer
    x = 32,518.09

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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.