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Finding the Fourth Proportional to 25,650.88, 38,480.36 and 10,859.88

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Solution

The fourth proportional to 25,650.88, 38,480.36 and 10,859.88 is: 16,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,650.88 : 38,480.36 = 10,859.88 : x
  2. Step 2: Convert to fraction form
    25,650.88/38,480.36 = 10,859.88/x
  3. Step 3: Cross multiply
    25,650.88x = 38,480.36 × 10,859.88
  4. Step 4: Simplify right side
    25,650.88x = 417,892,091.96
  5. Step 5: Solve for x
    x = 417,892,091.96/25,650.88
  6. Step 6: Final answer
    x = 16,291.53

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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.