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Finding the Fourth Proportional to 18,246.42, 27,369.90 and 12,046.14

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Solution

The fourth proportional to 18,246.42, 27,369.90 and 12,046.14 is: 18,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.42 : 27,369.90 = 12,046.14 : x
  2. Step 2: Convert to fraction form
    18,246.42/27,369.90 = 12,046.14/x
  3. Step 3: Cross multiply
    18,246.42x = 27,369.90 × 12,046.14
  4. Step 4: Simplify right side
    18,246.42x = 329,701,647.19
  5. Step 5: Solve for x
    x = 329,701,647.19/18,246.42
  6. Step 6: Final answer
    x = 18,069.39

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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.