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Finding the Fourth Proportional to 18,170.66, 27,253.80 and 4,844.68

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Solution

The fourth proportional to 18,170.66, 27,253.80 and 4,844.68 is: 7,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.66 : 27,253.80 = 4,844.68 : x
  2. Step 2: Convert to fraction form
    18,170.66/27,253.80 = 4,844.68/x
  3. Step 3: Cross multiply
    18,170.66x = 27,253.80 × 4,844.68
  4. Step 4: Simplify right side
    18,170.66x = 132,035,871.65
  5. Step 5: Solve for x
    x = 132,035,871.65/18,170.66
  6. Step 6: Final answer
    x = 7,266.43

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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.