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Finding the Fourth Proportional to 25,799.31, 38,698.16 and 7,331.31

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Solution

The fourth proportional to 25,799.31, 38,698.16 and 7,331.31 is: 10,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,799.31 : 38,698.16 = 7,331.31 : x
  2. Step 2: Convert to fraction form
    25,799.31/38,698.16 = 7,331.31/x
  3. Step 3: Cross multiply
    25,799.31x = 38,698.16 × 7,331.31
  4. Step 4: Simplify right side
    25,799.31x = 283,708,170.73
  5. Step 5: Solve for x
    x = 283,708,170.73/25,799.31
  6. Step 6: Final answer
    x = 10,996.73

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1.5x scale

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.