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Finding the Fourth Proportional to 4,933.38, 7,393.53 and 2,155.86

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Solution

The fourth proportional to 4,933.38, 7,393.53 and 2,155.86 is: 3,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,933.38 : 7,393.53 = 2,155.86 : x
  2. Step 2: Convert to fraction form
    4,933.38/7,393.53 = 2,155.86/x
  3. Step 3: Cross multiply
    4,933.38x = 7,393.53 × 2,155.86
  4. Step 4: Simplify right side
    4,933.38x = 15,939,415.59
  5. Step 5: Solve for x
    x = 15,939,415.59/4,933.38
  6. Step 6: Final answer
    x = 3,230.93

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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.