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Finding the Fourth Proportional to 3,393.86, 4,705.20 and 3,273.57

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Solution

The fourth proportional to 3,393.86, 4,705.20 and 3,273.57 is: 4,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.86 : 4,705.20 = 3,273.57 : x
  2. Step 2: Convert to fraction form
    3,393.86/4,705.20 = 3,273.57/x
  3. Step 3: Cross multiply
    3,393.86x = 4,705.20 × 3,273.57
  4. Step 4: Simplify right side
    3,393.86x = 15,402,801.56
  5. Step 5: Solve for x
    x = 15,402,801.56/3,393.86
  6. Step 6: Final answer
    x = 4,538.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.