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Finding the Fourth Proportional to 7,023.32, 9,692.28 and 3,879.62

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Solution

The fourth proportional to 7,023.32, 9,692.28 and 3,879.62 is: 5,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.32 : 9,692.28 = 3,879.62 : x
  2. Step 2: Convert to fraction form
    7,023.32/9,692.28 = 3,879.62/x
  3. Step 3: Cross multiply
    7,023.32x = 9,692.28 × 3,879.62
  4. Step 4: Simplify right side
    7,023.32x = 37,602,363.33
  5. Step 5: Solve for x
    x = 37,602,363.33/7,023.32
  6. Step 6: Final answer
    x = 5,353.93

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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.