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Finding the Fourth Proportional to 18,313.22, 27,472.67 and 6,468.55

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Solution

The fourth proportional to 18,313.22, 27,472.67 and 6,468.55 is: 9,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.22 : 27,472.67 = 6,468.55 : x
  2. Step 2: Convert to fraction form
    18,313.22/27,472.67 = 6,468.55/x
  3. Step 3: Cross multiply
    18,313.22x = 27,472.67 × 6,468.55
  4. Step 4: Simplify right side
    18,313.22x = 177,708,339.53
  5. Step 5: Solve for x
    x = 177,708,339.53/18,313.22
  6. Step 6: Final answer
    x = 9,703.83

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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.