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Finding the Fourth Proportional to 11,097.90, 16,640.76 and 7,591.88

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Solution

The fourth proportional to 11,097.90, 16,640.76 and 7,591.88 is: 11,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.90 : 16,640.76 = 7,591.88 : x
  2. Step 2: Convert to fraction form
    11,097.90/16,640.76 = 7,591.88/x
  3. Step 3: Cross multiply
    11,097.90x = 16,640.76 × 7,591.88
  4. Step 4: Simplify right side
    11,097.90x = 126,334,653.03
  5. Step 5: Solve for x
    x = 126,334,653.03/11,097.90
  6. Step 6: Final answer
    x = 11,383.65

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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.