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Finding the Fourth Proportional to 19,793.52, 29,734.02 and 15,419.52

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Solution

The fourth proportional to 19,793.52, 29,734.02 and 15,419.52 is: 23,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.52 : 29,734.02 = 15,419.52 : x
  2. Step 2: Convert to fraction form
    19,793.52/29,734.02 = 15,419.52/x
  3. Step 3: Cross multiply
    19,793.52x = 29,734.02 × 15,419.52
  4. Step 4: Simplify right side
    19,793.52x = 458,484,316.07
  5. Step 5: Solve for x
    x = 458,484,316.07/19,793.52
  6. Step 6: Final answer
    x = 23,163.35

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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.