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Finding the Fourth Proportional to 18,476.66, 27,697.71 and 6,786.74

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Solution

The fourth proportional to 18,476.66, 27,697.71 and 6,786.74 is: 10,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.66 : 27,697.71 = 6,786.74 : x
  2. Step 2: Convert to fraction form
    18,476.66/27,697.71 = 6,786.74/x
  3. Step 3: Cross multiply
    18,476.66x = 27,697.71 × 6,786.74
  4. Step 4: Simplify right side
    18,476.66x = 187,977,156.37
  5. Step 5: Solve for x
    x = 187,977,156.37/18,476.66
  6. Step 6: Final answer
    x = 10,173.76

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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.