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Finding the Fourth Proportional to 6,326.76, 8,730.55 and 3,809.69

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Solution

The fourth proportional to 6,326.76, 8,730.55 and 3,809.69 is: 5,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.76 : 8,730.55 = 3,809.69 : x
  2. Step 2: Convert to fraction form
    6,326.76/8,730.55 = 3,809.69/x
  3. Step 3: Cross multiply
    6,326.76x = 8,730.55 × 3,809.69
  4. Step 4: Simplify right side
    6,326.76x = 33,260,682.88
  5. Step 5: Solve for x
    x = 33,260,682.88/6,326.76
  6. Step 6: Final answer
    x = 5,257.14

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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.