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Finding the Fourth Proportional to 18,468.66, 27,717.53 and 6,785.22

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Solution

The fourth proportional to 18,468.66, 27,717.53 and 6,785.22 is: 10,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.66 : 27,717.53 = 6,785.22 : x
  2. Step 2: Convert to fraction form
    18,468.66/27,717.53 = 6,785.22/x
  3. Step 3: Cross multiply
    18,468.66x = 27,717.53 × 6,785.22
  4. Step 4: Simplify right side
    18,468.66x = 188,069,538.91
  5. Step 5: Solve for x
    x = 188,069,538.91/18,468.66
  6. Step 6: Final answer
    x = 10,183.17

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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.