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Finding the Fourth Proportional to 25,803.31, 38,704.15 and 7,335.31

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Solution

The fourth proportional to 25,803.31, 38,704.15 and 7,335.31 is: 11,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.31 : 38,704.15 = 7,335.31 : x
  2. Step 2: Convert to fraction form
    25,803.31/38,704.15 = 7,335.31/x
  3. Step 3: Cross multiply
    25,803.31x = 38,704.15 × 7,335.31
  4. Step 4: Simplify right side
    25,803.31x = 283,906,938.54
  5. Step 5: Solve for x
    x = 283,906,938.54/25,803.31
  6. Step 6: Final answer
    x = 11,002.73

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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.