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Finding the Fourth Proportional to 7,394.99, 11,086.01 and 2,781.23

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Solution

The fourth proportional to 7,394.99, 11,086.01 and 2,781.23 is: 4,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.99 : 11,086.01 = 2,781.23 : x
  2. Step 2: Convert to fraction form
    7,394.99/11,086.01 = 2,781.23/x
  3. Step 3: Cross multiply
    7,394.99x = 11,086.01 × 2,781.23
  4. Step 4: Simplify right side
    7,394.99x = 30,832,729.69
  5. Step 5: Solve for x
    x = 30,832,729.69/7,394.99
  6. Step 6: Final answer
    x = 4,169.41

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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.