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Finding the Fourth Proportional to 6,331.63, 8,729.45 and 4,338.63

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Solution

The fourth proportional to 6,331.63, 8,729.45 and 4,338.63 is: 5,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.63 : 8,729.45 = 4,338.63 : x
  2. Step 2: Convert to fraction form
    6,331.63/8,729.45 = 4,338.63/x
  3. Step 3: Cross multiply
    6,331.63x = 8,729.45 × 4,338.63
  4. Step 4: Simplify right side
    6,331.63x = 37,873,853.65
  5. Step 5: Solve for x
    x = 37,873,853.65/6,331.63
  6. Step 6: Final answer
    x = 5,981.69

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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.