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Finding the Fourth Proportional to 6,327.48, 8,731.17 and 3,809.55

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Solution

The fourth proportional to 6,327.48, 8,731.17 and 3,809.55 is: 5,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,327.48 : 8,731.17 = 3,809.55 : x
  2. Step 2: Convert to fraction form
    6,327.48/8,731.17 = 3,809.55/x
  3. Step 3: Cross multiply
    6,327.48x = 8,731.17 × 3,809.55
  4. Step 4: Simplify right side
    6,327.48x = 33,261,828.67
  5. Step 5: Solve for x
    x = 33,261,828.67/6,327.48
  6. Step 6: Final answer
    x = 5,256.73

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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.