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Finding the Fourth Proportional to 38,599.69, 57,857.28 and 19,880.86

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Solution

The fourth proportional to 38,599.69, 57,857.28 and 19,880.86 is: 29,799.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,599.69 : 57,857.28 = 19,880.86 : x
  2. Step 2: Convert to fraction form
    38,599.69/57,857.28 = 19,880.86/x
  3. Step 3: Cross multiply
    38,599.69x = 57,857.28 × 19,880.86
  4. Step 4: Simplify right side
    38,599.69x = 1,150,252,483.66
  5. Step 5: Solve for x
    x = 1,150,252,483.66/38,599.69
  6. Step 6: Final answer
    x = 29,799.53

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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.