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Finding the Fourth Proportional to 7,394.70, 11,092.05 and 5,329.20

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Solution

The fourth proportional to 7,394.70, 11,092.05 and 5,329.20 is: 7,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.70 : 11,092.05 = 5,329.20 : x
  2. Step 2: Convert to fraction form
    7,394.70/11,092.05 = 5,329.20/x
  3. Step 3: Cross multiply
    7,394.70x = 11,092.05 × 5,329.20
  4. Step 4: Simplify right side
    7,394.70x = 59,111,752.86
  5. Step 5: Solve for x
    x = 59,111,752.86/7,394.70
  6. Step 6: Final answer
    x = 7,993.80

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Similar ratio
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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.