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Finding the Fourth Proportional to 18,242.42, 27,363.90 and 12,042.14

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Solution

The fourth proportional to 18,242.42, 27,363.90 and 12,042.14 is: 18,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.42 : 27,363.90 = 12,042.14 : x
  2. Step 2: Convert to fraction form
    18,242.42/27,363.90 = 12,042.14/x
  3. Step 3: Cross multiply
    18,242.42x = 27,363.90 × 12,042.14
  4. Step 4: Simplify right side
    18,242.42x = 329,519,914.75
  5. Step 5: Solve for x
    x = 329,519,914.75/18,242.42
  6. Step 6: Final answer
    x = 18,063.39

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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.