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Finding the Fourth Proportional to 34,354.54, 47,413.20 and 19,251.28

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Solution

The fourth proportional to 34,354.54, 47,413.20 and 19,251.28 is: 26,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,354.54 : 47,413.20 = 19,251.28 : x
  2. Step 2: Convert to fraction form
    34,354.54/47,413.20 = 19,251.28/x
  3. Step 3: Cross multiply
    34,354.54x = 47,413.20 × 19,251.28
  4. Step 4: Simplify right side
    34,354.54x = 912,764,788.90
  5. Step 5: Solve for x
    x = 912,764,788.90/34,354.54
  6. Step 6: Final answer
    x = 26,568.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.