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Finding the Fourth Proportional to 5,612.93, 7,743.36 and 3,933.73

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Solution

The fourth proportional to 5,612.93, 7,743.36 and 3,933.73 is: 5,426.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.93 : 7,743.36 = 3,933.73 : x
  2. Step 2: Convert to fraction form
    5,612.93/7,743.36 = 3,933.73/x
  3. Step 3: Cross multiply
    5,612.93x = 7,743.36 × 3,933.73
  4. Step 4: Simplify right side
    5,612.93x = 30,460,287.53
  5. Step 5: Solve for x
    x = 30,460,287.53/5,612.93
  6. Step 6: Final answer
    x = 5,426.81

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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.