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Finding the Fourth Proportional to 59,902.44, 89,861.64 and 20,448.96

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Solution

The fourth proportional to 59,902.44, 89,861.64 and 20,448.96 is: 30,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,902.44 : 89,861.64 = 20,448.96 : x
  2. Step 2: Convert to fraction form
    59,902.44/89,861.64 = 20,448.96/x
  3. Step 3: Cross multiply
    59,902.44x = 89,861.64 × 20,448.96
  4. Step 4: Simplify right side
    59,902.44x = 1,837,577,081.89
  5. Step 5: Solve for x
    x = 1,837,577,081.89/59,902.44
  6. Step 6: Final answer
    x = 30,676.16

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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.