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Finding the Fourth Proportional to 18,243.59, 27,365.36 and 4,392.59

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Solution

The fourth proportional to 18,243.59, 27,365.36 and 4,392.59 is: 6,588.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.59 : 27,365.36 = 4,392.59 : x
  2. Step 2: Convert to fraction form
    18,243.59/27,365.36 = 4,392.59/x
  3. Step 3: Cross multiply
    18,243.59x = 27,365.36 × 4,392.59
  4. Step 4: Simplify right side
    18,243.59x = 120,204,647.89
  5. Step 5: Solve for x
    x = 120,204,647.89/18,243.59
  6. Step 6: Final answer
    x = 6,588.87

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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.