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Finding the Fourth Proportional to 18,166.97, 25,068.17 and 10,511.56

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Solution

The fourth proportional to 18,166.97, 25,068.17 and 10,511.56 is: 14,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166.97 : 25,068.17 = 10,511.56 : x
  2. Step 2: Convert to fraction form
    18,166.97/25,068.17 = 10,511.56/x
  3. Step 3: Cross multiply
    18,166.97x = 25,068.17 × 10,511.56
  4. Step 4: Simplify right side
    18,166.97x = 263,505,630.66
  5. Step 5: Solve for x
    x = 263,505,630.66/18,166.97
  6. Step 6: Final answer
    x = 14,504.65

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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.