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Finding the Fourth Proportional to 66,695.31, 100,043.14 and 27,252.42

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Solution

The fourth proportional to 66,695.31, 100,043.14 and 27,252.42 is: 40,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.31 : 100,043.14 = 27,252.42 : x
  2. Step 2: Convert to fraction form
    66,695.31/100,043.14 = 27,252.42/x
  3. Step 3: Cross multiply
    66,695.31x = 100,043.14 × 27,252.42
  4. Step 4: Simplify right side
    66,695.31x = 2,726,418,082.99
  5. Step 5: Solve for x
    x = 2,726,418,082.99/66,695.31
  6. Step 6: Final answer
    x = 40,878.71

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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.