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Finding the Fourth Proportional to 18,282.44, 27,423.66 and 4,431.44

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Solution

The fourth proportional to 18,282.44, 27,423.66 and 4,431.44 is: 6,647.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.44 : 27,423.66 = 4,431.44 : x
  2. Step 2: Convert to fraction form
    18,282.44/27,423.66 = 4,431.44/x
  3. Step 3: Cross multiply
    18,282.44x = 27,423.66 × 4,431.44
  4. Step 4: Simplify right side
    18,282.44x = 121,526,224.23
  5. Step 5: Solve for x
    x = 121,526,224.23/18,282.44
  6. Step 6: Final answer
    x = 6,647.16

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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.