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Finding the Fourth Proportional to 6,331.88, 8,729.80 and 4,338.88

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Solution

The fourth proportional to 6,331.88, 8,729.80 and 4,338.88 is: 5,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.88 : 8,729.80 = 4,338.88 : x
  2. Step 2: Convert to fraction form
    6,331.88/8,729.80 = 4,338.88/x
  3. Step 3: Cross multiply
    6,331.88x = 8,729.80 × 4,338.88
  4. Step 4: Simplify right side
    6,331.88x = 37,877,521.95
  5. Step 5: Solve for x
    x = 37,877,521.95/6,331.88
  6. Step 6: Final answer
    x = 5,982.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.