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Finding the Fourth Proportional to 18,892.26, 26,068.57 and 11,336.99

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Solution

The fourth proportional to 18,892.26, 26,068.57 and 11,336.99 is: 15,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892.26 : 26,068.57 = 11,336.99 : x
  2. Step 2: Convert to fraction form
    18,892.26/26,068.57 = 11,336.99/x
  3. Step 3: Cross multiply
    18,892.26x = 26,068.57 × 11,336.99
  4. Step 4: Simplify right side
    18,892.26x = 295,538,958.72
  5. Step 5: Solve for x
    x = 295,538,958.72/18,892.26
  6. Step 6: Final answer
    x = 15,643.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.