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Finding the Fourth Proportional to 59,777.72, 89,649.57 and 20,333.96

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Solution

The fourth proportional to 59,777.72, 89,649.57 and 20,333.96 is: 30,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,777.72 : 89,649.57 = 20,333.96 : x
  2. Step 2: Convert to fraction form
    59,777.72/89,649.57 = 20,333.96/x
  3. Step 3: Cross multiply
    59,777.72x = 89,649.57 × 20,333.96
  4. Step 4: Simplify right side
    59,777.72x = 1,822,930,770.40
  5. Step 5: Solve for x
    x = 1,822,930,770.40/59,777.72
  6. Step 6: Final answer
    x = 30,495.15

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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.