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Finding the Fourth Proportional to 45,754.88, 68,631.60 and 14,589.92

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Solution

The fourth proportional to 45,754.88, 68,631.60 and 14,589.92 is: 21,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,754.88 : 68,631.60 = 14,589.92 : x
  2. Step 2: Convert to fraction form
    45,754.88/68,631.60 = 14,589.92/x
  3. Step 3: Cross multiply
    45,754.88x = 68,631.60 × 14,589.92
  4. Step 4: Simplify right side
    45,754.88x = 1,001,329,553.47
  5. Step 5: Solve for x
    x = 1,001,329,553.47/45,754.88
  6. Step 6: Final answer
    x = 21,884.65

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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.