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Finding the Fourth Proportional to 18,014.24, 27,029.12 and 9,684.48

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Solution

The fourth proportional to 18,014.24, 27,029.12 and 9,684.48 is: 14,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.24 : 27,029.12 = 9,684.48 : x
  2. Step 2: Convert to fraction form
    18,014.24/27,029.12 = 9,684.48/x
  3. Step 3: Cross multiply
    18,014.24x = 27,029.12 × 9,684.48
  4. Step 4: Simplify right side
    18,014.24x = 261,762,972.06
  5. Step 5: Solve for x
    x = 261,762,972.06/18,014.24
  6. Step 6: Final answer
    x = 14,530.89

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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.