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Finding the Fourth Proportional to 7,094.98, 9,791.06 and 3,951.90

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Solution

The fourth proportional to 7,094.98, 9,791.06 and 3,951.90 is: 5,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,094.98 : 9,791.06 = 3,951.90 : x
  2. Step 2: Convert to fraction form
    7,094.98/9,791.06 = 3,951.90/x
  3. Step 3: Cross multiply
    7,094.98x = 9,791.06 × 3,951.90
  4. Step 4: Simplify right side
    7,094.98x = 38,693,290.01
  5. Step 5: Solve for x
    x = 38,693,290.01/7,094.98
  6. Step 6: Final answer
    x = 5,453.62

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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.