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Finding the Fourth Proportional to 7,023.54, 9,692.58 and 3,879.84

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Solution

The fourth proportional to 7,023.54, 9,692.58 and 3,879.84 is: 5,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.54 : 9,692.58 = 3,879.84 : x
  2. Step 2: Convert to fraction form
    7,023.54/9,692.58 = 3,879.84/x
  3. Step 3: Cross multiply
    7,023.54x = 9,692.58 × 3,879.84
  4. Step 4: Simplify right side
    7,023.54x = 37,605,659.59
  5. Step 5: Solve for x
    x = 37,605,659.59/7,023.54
  6. Step 6: Final answer
    x = 5,354.23

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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.