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Finding the Fourth Proportional to 5,365.80, 7,404.77 and 3,378.97

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Solution

The fourth proportional to 5,365.80, 7,404.77 and 3,378.97 is: 4,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.80 : 7,404.77 = 3,378.97 : x
  2. Step 2: Convert to fraction form
    5,365.80/7,404.77 = 3,378.97/x
  3. Step 3: Cross multiply
    5,365.80x = 7,404.77 × 3,378.97
  4. Step 4: Simplify right side
    5,365.80x = 25,020,485.62
  5. Step 5: Solve for x
    x = 25,020,485.62/5,365.80
  6. Step 6: Final answer
    x = 4,662.96

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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.