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Finding the Fourth Proportional to 17,148.15, 25,724.07 and 5,458.65

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Solution

The fourth proportional to 17,148.15, 25,724.07 and 5,458.65 is: 8,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,148.15 : 25,724.07 = 5,458.65 : x
  2. Step 2: Convert to fraction form
    17,148.15/25,724.07 = 5,458.65/x
  3. Step 3: Cross multiply
    17,148.15x = 25,724.07 × 5,458.65
  4. Step 4: Simplify right side
    17,148.15x = 140,418,694.71
  5. Step 5: Solve for x
    x = 140,418,694.71/17,148.15
  6. Step 6: Final answer
    x = 8,188.56

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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.