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Finding the Fourth Proportional to 5,390.98, 7,440.96 and 3,296.86

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Solution

The fourth proportional to 5,390.98, 7,440.96 and 3,296.86 is: 4,550.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.98 : 7,440.96 = 3,296.86 : x
  2. Step 2: Convert to fraction form
    5,390.98/7,440.96 = 3,296.86/x
  3. Step 3: Cross multiply
    5,390.98x = 7,440.96 × 3,296.86
  4. Step 4: Simplify right side
    5,390.98x = 24,531,803.39
  5. Step 5: Solve for x
    x = 24,531,803.39/5,390.98
  6. Step 6: Final answer
    x = 4,550.53

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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.