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Finding the Fourth Proportional to 18,504.51, 27,760.18 and 5,857.44

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Solution

The fourth proportional to 18,504.51, 27,760.18 and 5,857.44 is: 8,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.51 : 27,760.18 = 5,857.44 : x
  2. Step 2: Convert to fraction form
    18,504.51/27,760.18 = 5,857.44/x
  3. Step 3: Cross multiply
    18,504.51x = 27,760.18 × 5,857.44
  4. Step 4: Simplify right side
    18,504.51x = 162,603,588.74
  5. Step 5: Solve for x
    x = 162,603,588.74/18,504.51
  6. Step 6: Final answer
    x = 8,787.24

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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.