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Finding the Fourth Proportional to 18,477.70, 27,711.48 and 6,629.27

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Solution

The fourth proportional to 18,477.70, 27,711.48 and 6,629.27 is: 9,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.70 : 27,711.48 = 6,629.27 : x
  2. Step 2: Convert to fraction form
    18,477.70/27,711.48 = 6,629.27/x
  3. Step 3: Cross multiply
    18,477.70x = 27,711.48 × 6,629.27
  4. Step 4: Simplify right side
    18,477.70x = 183,706,883.02
  5. Step 5: Solve for x
    x = 183,706,883.02/18,477.70
  6. Step 6: Final answer
    x = 9,942.09

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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.