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Finding the Fourth Proportional to 59,814.70, 89,722.39 and 15,438.42

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Solution

The fourth proportional to 59,814.70, 89,722.39 and 15,438.42 is: 23,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,814.70 : 89,722.39 = 15,438.42 : x
  2. Step 2: Convert to fraction form
    59,814.70/89,722.39 = 15,438.42/x
  3. Step 3: Cross multiply
    59,814.70x = 89,722.39 × 15,438.42
  4. Step 4: Simplify right side
    59,814.70x = 1,385,171,414.42
  5. Step 5: Solve for x
    x = 1,385,171,414.42/59,814.70
  6. Step 6: Final answer
    x = 23,157.71

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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.