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Finding the Fourth Proportional to 25,157.51, 37,743.07 and 8,517.54

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Solution

The fourth proportional to 25,157.51, 37,743.07 and 8,517.54 is: 12,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.51 : 37,743.07 = 8,517.54 : x
  2. Step 2: Convert to fraction form
    25,157.51/37,743.07 = 8,517.54/x
  3. Step 3: Cross multiply
    25,157.51x = 37,743.07 × 8,517.54
  4. Step 4: Simplify right side
    25,157.51x = 321,478,108.45
  5. Step 5: Solve for x
    x = 321,478,108.45/25,157.51
  6. Step 6: Final answer
    x = 12,778.61

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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.