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Finding the Fourth Proportional to 11,892.08, 17,841.78 and 9,428.06

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Solution

The fourth proportional to 11,892.08, 17,841.78 and 9,428.06 is: 14,144.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.08 : 17,841.78 = 9,428.06 : x
  2. Step 2: Convert to fraction form
    11,892.08/17,841.78 = 9,428.06/x
  3. Step 3: Cross multiply
    11,892.08x = 17,841.78 × 9,428.06
  4. Step 4: Simplify right side
    11,892.08x = 168,213,372.35
  5. Step 5: Solve for x
    x = 168,213,372.35/11,892.08
  6. Step 6: Final answer
    x = 14,144.99

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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.