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Finding the Fourth Proportional to 5,391.86, 7,440.30 and 3,033.68

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Solution

The fourth proportional to 5,391.86, 7,440.30 and 3,033.68 is: 4,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.86 : 7,440.30 = 3,033.68 : x
  2. Step 2: Convert to fraction form
    5,391.86/7,440.30 = 3,033.68/x
  3. Step 3: Cross multiply
    5,391.86x = 7,440.30 × 3,033.68
  4. Step 4: Simplify right side
    5,391.86x = 22,571,489.30
  5. Step 5: Solve for x
    x = 22,571,489.30/5,391.86
  6. Step 6: Final answer
    x = 4,186.22

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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.