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Finding the Fourth Proportional to 59,891.68, 89,856.96 and 28,729.36

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Solution

The fourth proportional to 59,891.68, 89,856.96 and 28,729.36 is: 43,103.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,891.68 : 89,856.96 = 28,729.36 : x
  2. Step 2: Convert to fraction form
    59,891.68/89,856.96 = 28,729.36/x
  3. Step 3: Cross multiply
    59,891.68x = 89,856.96 × 28,729.36
  4. Step 4: Simplify right side
    59,891.68x = 2,581,532,952.35
  5. Step 5: Solve for x
    x = 2,581,532,952.35/59,891.68
  6. Step 6: Final answer
    x = 43,103.37

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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.